Home / 7,151.40-10,731.15-2,769.17

Finding the Fourth Proportional to 7,151.40, 10,731.15 and 2,769.17

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Solution

The fourth proportional to 7,151.40, 10,731.15 and 2,769.17 is: 4,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.40 : 10,731.15 = 2,769.17 : x
  2. Step 2: Convert to fraction form
    7,151.40/10,731.15 = 2,769.17/x
  3. Step 3: Cross multiply
    7,151.40x = 10,731.15 × 2,769.17
  4. Step 4: Simplify right side
    7,151.40x = 29,716,324.99
  5. Step 5: Solve for x
    x = 29,716,324.99/7,151.40
  6. Step 6: Final answer
    x = 4,155.32

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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.