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Finding the Fourth Proportional to 1,325.75, 1,987.17 and 594.32

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Solution

The fourth proportional to 1,325.75, 1,987.17 and 594.32 is: 890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.75 : 1,987.17 = 594.32 : x
  2. Step 2: Convert to fraction form
    1,325.75/1,987.17 = 594.32/x
  3. Step 3: Cross multiply
    1,325.75x = 1,987.17 × 594.32
  4. Step 4: Simplify right side
    1,325.75x = 1,181,014.87
  5. Step 5: Solve for x
    x = 1,181,014.87/1,325.75
  6. Step 6: Final answer
    x = 890.83

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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.