Home / 4,990.13-7,484.84-1,705.53

Finding the Fourth Proportional to 4,990.13, 7,484.84 and 1,705.53

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Solution

The fourth proportional to 4,990.13, 7,484.84 and 1,705.53 is: 2,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.13 : 7,484.84 = 1,705.53 : x
  2. Step 2: Convert to fraction form
    4,990.13/7,484.84 = 1,705.53/x
  3. Step 3: Cross multiply
    4,990.13x = 7,484.84 × 1,705.53
  4. Step 4: Simplify right side
    4,990.13x = 12,765,619.17
  5. Step 5: Solve for x
    x = 12,765,619.17/4,990.13
  6. Step 6: Final answer
    x = 2,558.17

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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.