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Finding the Fourth Proportional to 1,502.70, 2,073.15 and 873.13

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Solution

The fourth proportional to 1,502.70, 2,073.15 and 873.13 is: 1,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.70 : 2,073.15 = 873.13 : x
  2. Step 2: Convert to fraction form
    1,502.70/2,073.15 = 873.13/x
  3. Step 3: Cross multiply
    1,502.70x = 2,073.15 × 873.13
  4. Step 4: Simplify right side
    1,502.70x = 1,810,119.09
  5. Step 5: Solve for x
    x = 1,810,119.09/1,502.70
  6. Step 6: Final answer
    x = 1,204.58

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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.