Home / 1,502.57-2,073.60-839.30

Finding the Fourth Proportional to 1,502.57, 2,073.60 and 839.30

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Solution

The fourth proportional to 1,502.57, 2,073.60 and 839.30 is: 1,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.57 : 2,073.60 = 839.30 : x
  2. Step 2: Convert to fraction form
    1,502.57/2,073.60 = 839.30/x
  3. Step 3: Cross multiply
    1,502.57x = 2,073.60 × 839.30
  4. Step 4: Simplify right side
    1,502.57x = 1,740,362.11
  5. Step 5: Solve for x
    x = 1,740,362.11/1,502.57
  6. Step 6: Final answer
    x = 1,158.26

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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.