Home / 4,781.29-7,172.12-2,281.18

Finding the Fourth Proportional to 4,781.29, 7,172.12 and 2,281.18

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Solution

The fourth proportional to 4,781.29, 7,172.12 and 2,281.18 is: 3,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.29 : 7,172.12 = 2,281.18 : x
  2. Step 2: Convert to fraction form
    4,781.29/7,172.12 = 2,281.18/x
  3. Step 3: Cross multiply
    4,781.29x = 7,172.12 × 2,281.18
  4. Step 4: Simplify right side
    4,781.29x = 16,360,896.70
  5. Step 5: Solve for x
    x = 16,360,896.70/4,781.29
  6. Step 6: Final answer
    x = 3,421.86

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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.