Home / 4,990.51-7,485.96-1,703.62

Finding the Fourth Proportional to 4,990.51, 7,485.96 and 1,703.62

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Solution

The fourth proportional to 4,990.51, 7,485.96 and 1,703.62 is: 2,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.51 : 7,485.96 = 1,703.62 : x
  2. Step 2: Convert to fraction form
    4,990.51/7,485.96 = 1,703.62/x
  3. Step 3: Cross multiply
    4,990.51x = 7,485.96 × 1,703.62
  4. Step 4: Simplify right side
    4,990.51x = 12,753,231.18
  5. Step 5: Solve for x
    x = 12,753,231.18/4,990.51
  6. Step 6: Final answer
    x = 2,555.50

Related Problems

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Half scale
Find fourth proportional to 9,981.02, 14,971.92 and 3,407.24
Double scale
Find fourth proportional to 4,991.51, 7,487.46 and 1,704.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.