Home / 3,577.60-5,366.40-3,431.80

Finding the Fourth Proportional to 3,577.60, 5,366.40 and 3,431.80

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Solution

The fourth proportional to 3,577.60, 5,366.40 and 3,431.80 is: 5,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.60 : 5,366.40 = 3,431.80 : x
  2. Step 2: Convert to fraction form
    3,577.60/5,366.40 = 3,431.80/x
  3. Step 3: Cross multiply
    3,577.60x = 5,366.40 × 3,431.80
  4. Step 4: Simplify right side
    3,577.60x = 18,416,411.52
  5. Step 5: Solve for x
    x = 18,416,411.52/3,577.60
  6. Step 6: Final answer
    x = 5,147.70

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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.