Home / 5,418.10-8,127.15-4,543.30

Finding the Fourth Proportional to 5,418.10, 8,127.15 and 4,543.30

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Solution

The fourth proportional to 5,418.10, 8,127.15 and 4,543.30 is: 6,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.10 : 8,127.15 = 4,543.30 : x
  2. Step 2: Convert to fraction form
    5,418.10/8,127.15 = 4,543.30/x
  3. Step 3: Cross multiply
    5,418.10x = 8,127.15 × 4,543.30
  4. Step 4: Simplify right side
    5,418.10x = 36,924,080.60
  5. Step 5: Solve for x
    x = 36,924,080.60/5,418.10
  6. Step 6: Final answer
    x = 6,814.95

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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.