Home / 5,397.60-8,086.80-4,418.40

Finding the Fourth Proportional to 5,397.60, 8,086.80 and 4,418.40

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Solution

The fourth proportional to 5,397.60, 8,086.80 and 4,418.40 is: 6,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.60 : 8,086.80 = 4,418.40 : x
  2. Step 2: Convert to fraction form
    5,397.60/8,086.80 = 4,418.40/x
  3. Step 3: Cross multiply
    5,397.60x = 8,086.80 × 4,418.40
  4. Step 4: Simplify right side
    5,397.60x = 35,730,717.12
  5. Step 5: Solve for x
    x = 35,730,717.12/5,397.60
  6. Step 6: Final answer
    x = 6,619.74

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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.