Home / 5,538.11-8,308.78-1,642.61

Finding the Fourth Proportional to 5,538.11, 8,308.78 and 1,642.61

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Solution

The fourth proportional to 5,538.11, 8,308.78 and 1,642.61 is: 2,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.11 : 8,308.78 = 1,642.61 : x
  2. Step 2: Convert to fraction form
    5,538.11/8,308.78 = 1,642.61/x
  3. Step 3: Cross multiply
    5,538.11x = 8,308.78 × 1,642.61
  4. Step 4: Simplify right side
    5,538.11x = 13,648,101.78
  5. Step 5: Solve for x
    x = 13,648,101.78/5,538.11
  6. Step 6: Final answer
    x = 2,464.40

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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.