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Finding the Fourth Proportional to 1,502.17, 2,073.05 and 830.02

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Solution

The fourth proportional to 1,502.17, 2,073.05 and 830.02 is: 1,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.17 : 2,073.05 = 830.02 : x
  2. Step 2: Convert to fraction form
    1,502.17/2,073.05 = 830.02/x
  3. Step 3: Cross multiply
    1,502.17x = 2,073.05 × 830.02
  4. Step 4: Simplify right side
    1,502.17x = 1,720,672.96
  5. Step 5: Solve for x
    x = 1,720,672.96/1,502.17
  6. Step 6: Final answer
    x = 1,145.46

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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.