Home / 4,990.40-7,486.52-1,703.20

Finding the Fourth Proportional to 4,990.40, 7,486.52 and 1,703.20

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Solution

The fourth proportional to 4,990.40, 7,486.52 and 1,703.20 is: 2,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.40 : 7,486.52 = 1,703.20 : x
  2. Step 2: Convert to fraction form
    4,990.40/7,486.52 = 1,703.20/x
  3. Step 3: Cross multiply
    4,990.40x = 7,486.52 × 1,703.20
  4. Step 4: Simplify right side
    4,990.40x = 12,751,040.86
  5. Step 5: Solve for x
    x = 12,751,040.86/4,990.40
  6. Step 6: Final answer
    x = 2,555.11

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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.