Home / 7,775.57-11,656.87-3,613.38

Finding the Fourth Proportional to 7,775.57, 11,656.87 and 3,613.38

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Solution

The fourth proportional to 7,775.57, 11,656.87 and 3,613.38 is: 5,417.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.57 : 11,656.87 = 3,613.38 : x
  2. Step 2: Convert to fraction form
    7,775.57/11,656.87 = 3,613.38/x
  3. Step 3: Cross multiply
    7,775.57x = 11,656.87 × 3,613.38
  4. Step 4: Simplify right side
    7,775.57x = 42,120,691.89
  5. Step 5: Solve for x
    x = 42,120,691.89/7,775.57
  6. Step 6: Final answer
    x = 5,417.06

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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.