Home / 5,649.11-8,478.86-2,877.75

Finding the Fourth Proportional to 5,649.11, 8,478.86 and 2,877.75

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Solution

The fourth proportional to 5,649.11, 8,478.86 and 2,877.75 is: 4,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.11 : 8,478.86 = 2,877.75 : x
  2. Step 2: Convert to fraction form
    5,649.11/8,478.86 = 2,877.75/x
  3. Step 3: Cross multiply
    5,649.11x = 8,478.86 × 2,877.75
  4. Step 4: Simplify right side
    5,649.11x = 24,400,024.98
  5. Step 5: Solve for x
    x = 24,400,024.98/5,649.11
  6. Step 6: Final answer
    x = 4,319.27

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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.