Home / 3,521.60-5,282.40-3,132.80

Finding the Fourth Proportional to 3,521.60, 5,282.40 and 3,132.80

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Solution

The fourth proportional to 3,521.60, 5,282.40 and 3,132.80 is: 4,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.60 : 5,282.40 = 3,132.80 : x
  2. Step 2: Convert to fraction form
    3,521.60/5,282.40 = 3,132.80/x
  3. Step 3: Cross multiply
    3,521.60x = 5,282.40 × 3,132.80
  4. Step 4: Simplify right side
    3,521.60x = 16,548,702.72
  5. Step 5: Solve for x
    x = 16,548,702.72/3,521.60
  6. Step 6: Final answer
    x = 4,699.20

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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.