Home / 5,371.30-7,412.28-2,981.13

Finding the Fourth Proportional to 5,371.30, 7,412.28 and 2,981.13

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Solution

The fourth proportional to 5,371.30, 7,412.28 and 2,981.13 is: 4,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.30 : 7,412.28 = 2,981.13 : x
  2. Step 2: Convert to fraction form
    5,371.30/7,412.28 = 2,981.13/x
  3. Step 3: Cross multiply
    5,371.30x = 7,412.28 × 2,981.13
  4. Step 4: Simplify right side
    5,371.30x = 22,096,959.10
  5. Step 5: Solve for x
    x = 22,096,959.10/5,371.30
  6. Step 6: Final answer
    x = 4,113.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.