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Finding the Fourth Proportional to 1,589.66, 2,383.50 and 614.60

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Solution

The fourth proportional to 1,589.66, 2,383.50 and 614.60 is: 921.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.66 : 2,383.50 = 614.60 : x
  2. Step 2: Convert to fraction form
    1,589.66/2,383.50 = 614.60/x
  3. Step 3: Cross multiply
    1,589.66x = 2,383.50 × 614.60
  4. Step 4: Simplify right side
    1,589.66x = 1,464,899.10
  5. Step 5: Solve for x
    x = 1,464,899.10/1,589.66
  6. Step 6: Final answer
    x = 921.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.