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Finding the Fourth Proportional to 1,502.46, 2,073.47 and 830.27

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Solution

The fourth proportional to 1,502.46, 2,073.47 and 830.27 is: 1,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.46 : 2,073.47 = 830.27 : x
  2. Step 2: Convert to fraction form
    1,502.46/2,073.47 = 830.27/x
  3. Step 3: Cross multiply
    1,502.46x = 2,073.47 × 830.27
  4. Step 4: Simplify right side
    1,502.46x = 1,721,540.97
  5. Step 5: Solve for x
    x = 1,721,540.97/1,502.46
  6. Step 6: Final answer
    x = 1,145.81

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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.