Home / 7,112.64-10,665.12-2,726.88

Finding the Fourth Proportional to 7,112.64, 10,665.12 and 2,726.88

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Solution

The fourth proportional to 7,112.64, 10,665.12 and 2,726.88 is: 4,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.64 : 10,665.12 = 2,726.88 : x
  2. Step 2: Convert to fraction form
    7,112.64/10,665.12 = 2,726.88/x
  3. Step 3: Cross multiply
    7,112.64x = 10,665.12 × 2,726.88
  4. Step 4: Simplify right side
    7,112.64x = 29,082,502.43
  5. Step 5: Solve for x
    x = 29,082,502.43/7,112.64
  6. Step 6: Final answer
    x = 4,088.85

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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.