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Finding the Fourth Proportional to 3,352.52, 4,627.13 and 2,157.91

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Solution

The fourth proportional to 3,352.52, 4,627.13 and 2,157.91 is: 2,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,352.52 : 4,627.13 = 2,157.91 : x
  2. Step 2: Convert to fraction form
    3,352.52/4,627.13 = 2,157.91/x
  3. Step 3: Cross multiply
    3,352.52x = 4,627.13 × 2,157.91
  4. Step 4: Simplify right side
    3,352.52x = 9,984,907.74
  5. Step 5: Solve for x
    x = 9,984,907.74/3,352.52
  6. Step 6: Final answer
    x = 2,978.33

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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.