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Finding the Fourth Proportional to 5,531.88, 7,635.60 and 3,644.85

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Solution

The fourth proportional to 5,531.88, 7,635.60 and 3,644.85 is: 5,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.88 : 7,635.60 = 3,644.85 : x
  2. Step 2: Convert to fraction form
    5,531.88/7,635.60 = 3,644.85/x
  3. Step 3: Cross multiply
    5,531.88x = 7,635.60 × 3,644.85
  4. Step 4: Simplify right side
    5,531.88x = 27,830,616.66
  5. Step 5: Solve for x
    x = 27,830,616.66/5,531.88
  6. Step 6: Final answer
    x = 5,030.95

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1.5x scale

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.