Home / 7,123.76-10,688.49-2,966.64

Finding the Fourth Proportional to 7,123.76, 10,688.49 and 2,966.64

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Solution

The fourth proportional to 7,123.76, 10,688.49 and 2,966.64 is: 4,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.76 : 10,688.49 = 2,966.64 : x
  2. Step 2: Convert to fraction form
    7,123.76/10,688.49 = 2,966.64/x
  3. Step 3: Cross multiply
    7,123.76x = 10,688.49 × 2,966.64
  4. Step 4: Simplify right side
    7,123.76x = 31,708,901.97
  5. Step 5: Solve for x
    x = 31,708,901.97/7,123.76
  6. Step 6: Final answer
    x = 4,451.15

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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.