Home / 1,451.14-2,001.72-927.43

Finding the Fourth Proportional to 1,451.14, 2,001.72 and 927.43

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Solution

The fourth proportional to 1,451.14, 2,001.72 and 927.43 is: 1,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.14 : 2,001.72 = 927.43 : x
  2. Step 2: Convert to fraction form
    1,451.14/2,001.72 = 927.43/x
  3. Step 3: Cross multiply
    1,451.14x = 2,001.72 × 927.43
  4. Step 4: Simplify right side
    1,451.14x = 1,856,455.18
  5. Step 5: Solve for x
    x = 1,856,455.18/1,451.14
  6. Step 6: Final answer
    x = 1,279.31

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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.