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Finding the Fourth Proportional to 3,527.88, 5,290.92 and 1,187.52

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Solution

The fourth proportional to 3,527.88, 5,290.92 and 1,187.52 is: 1,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.88 : 5,290.92 = 1,187.52 : x
  2. Step 2: Convert to fraction form
    3,527.88/5,290.92 = 1,187.52/x
  3. Step 3: Cross multiply
    3,527.88x = 5,290.92 × 1,187.52
  4. Step 4: Simplify right side
    3,527.88x = 6,283,073.32
  5. Step 5: Solve for x
    x = 6,283,073.32/3,527.88
  6. Step 6: Final answer
    x = 1,780.98

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