Home / 5,379.12-8,064.56-2,455.38

Finding the Fourth Proportional to 5,379.12, 8,064.56 and 2,455.38

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Solution

The fourth proportional to 5,379.12, 8,064.56 and 2,455.38 is: 3,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.12 : 8,064.56 = 2,455.38 : x
  2. Step 2: Convert to fraction form
    5,379.12/8,064.56 = 2,455.38/x
  3. Step 3: Cross multiply
    5,379.12x = 8,064.56 × 2,455.38
  4. Step 4: Simplify right side
    5,379.12x = 19,801,565.47
  5. Step 5: Solve for x
    x = 19,801,565.47/5,379.12
  6. Step 6: Final answer
    x = 3,681.19

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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.