Home / 5,331.60-7,987.80-4,352.40

Finding the Fourth Proportional to 5,331.60, 7,987.80 and 4,352.40

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Solution

The fourth proportional to 5,331.60, 7,987.80 and 4,352.40 is: 6,520.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.60 : 7,987.80 = 4,352.40 : x
  2. Step 2: Convert to fraction form
    5,331.60/7,987.80 = 4,352.40/x
  3. Step 3: Cross multiply
    5,331.60x = 7,987.80 × 4,352.40
  4. Step 4: Simplify right side
    5,331.60x = 34,766,100.72
  5. Step 5: Solve for x
    x = 34,766,100.72/5,331.60
  6. Step 6: Final answer
    x = 6,520.76

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1.5x scale

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.