Home / 3,531.20-5,296.80-2,713.60

Finding the Fourth Proportional to 3,531.20, 5,296.80 and 2,713.60

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Solution

The fourth proportional to 3,531.20, 5,296.80 and 2,713.60 is: 4,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.20 : 5,296.80 = 2,713.60 : x
  2. Step 2: Convert to fraction form
    3,531.20/5,296.80 = 2,713.60/x
  3. Step 3: Cross multiply
    3,531.20x = 5,296.80 × 2,713.60
  4. Step 4: Simplify right side
    3,531.20x = 14,373,396.48
  5. Step 5: Solve for x
    x = 14,373,396.48/3,531.20
  6. Step 6: Final answer
    x = 4,070.40

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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.