Home / 5,391-7,442.01-3,996.18

Finding the Fourth Proportional to 5,391, 7,442.01 and 3,996.18

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Solution

The fourth proportional to 5,391, 7,442.01 and 3,996.18 is: 5,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391 : 7,442.01 = 3,996.18 : x
  2. Step 2: Convert to fraction form
    5,391/7,442.01 = 3,996.18/x
  3. Step 3: Cross multiply
    5,391x = 7,442.01 × 3,996.18
  4. Step 4: Simplify right side
    5,391x = 29,739,611.52
  5. Step 5: Solve for x
    x = 29,739,611.52/5,391
  6. Step 6: Final answer
    x = 5,516.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.