Home / 5,540.20-7,655.79-4,284.70

Finding the Fourth Proportional to 5,540.20, 7,655.79 and 4,284.70

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Solution

The fourth proportional to 5,540.20, 7,655.79 and 4,284.70 is: 5,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.20 : 7,655.79 = 4,284.70 : x
  2. Step 2: Convert to fraction form
    5,540.20/7,655.79 = 4,284.70/x
  3. Step 3: Cross multiply
    5,540.20x = 7,655.79 × 4,284.70
  4. Step 4: Simplify right side
    5,540.20x = 32,802,763.41
  5. Step 5: Solve for x
    x = 32,802,763.41/5,540.20
  6. Step 6: Final answer
    x = 5,920.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.