Home / 5,780.46-8,649.38-4,086.86

Finding the Fourth Proportional to 5,780.46, 8,649.38 and 4,086.86

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Solution

The fourth proportional to 5,780.46, 8,649.38 and 4,086.86 is: 6,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.46 : 8,649.38 = 4,086.86 : x
  2. Step 2: Convert to fraction form
    5,780.46/8,649.38 = 4,086.86/x
  3. Step 3: Cross multiply
    5,780.46x = 8,649.38 × 4,086.86
  4. Step 4: Simplify right side
    5,780.46x = 35,348,772.12
  5. Step 5: Solve for x
    x = 35,348,772.12/5,780.46
  6. Step 6: Final answer
    x = 6,115.21

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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.