Home / 5,531.13-8,277.60-3,421.89

Finding the Fourth Proportional to 5,531.13, 8,277.60 and 3,421.89

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Solution

The fourth proportional to 5,531.13, 8,277.60 and 3,421.89 is: 5,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.13 : 8,277.60 = 3,421.89 : x
  2. Step 2: Convert to fraction form
    5,531.13/8,277.60 = 3,421.89/x
  3. Step 3: Cross multiply
    5,531.13x = 8,277.60 × 3,421.89
  4. Step 4: Simplify right side
    5,531.13x = 28,325,036.66
  5. Step 5: Solve for x
    x = 28,325,036.66/5,531.13
  6. Step 6: Final answer
    x = 5,121.02

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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.