Home / 5,665.12-8,499.95-2,543.02

Finding the Fourth Proportional to 5,665.12, 8,499.95 and 2,543.02

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Solution

The fourth proportional to 5,665.12, 8,499.95 and 2,543.02 is: 3,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.12 : 8,499.95 = 2,543.02 : x
  2. Step 2: Convert to fraction form
    5,665.12/8,499.95 = 2,543.02/x
  3. Step 3: Cross multiply
    5,665.12x = 8,499.95 × 2,543.02
  4. Step 4: Simplify right side
    5,665.12x = 21,615,542.85
  5. Step 5: Solve for x
    x = 21,615,542.85/5,665.12
  6. Step 6: Final answer
    x = 3,815.55

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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.