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Finding the Fourth Proportional to 5,379.88, 8,064.15 and 2,460.10

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Solution

The fourth proportional to 5,379.88, 8,064.15 and 2,460.10 is: 3,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.88 : 8,064.15 = 2,460.10 : x
  2. Step 2: Convert to fraction form
    5,379.88/8,064.15 = 2,460.10/x
  3. Step 3: Cross multiply
    5,379.88x = 8,064.15 × 2,460.10
  4. Step 4: Simplify right side
    5,379.88x = 19,838,615.42
  5. Step 5: Solve for x
    x = 19,838,615.42/5,379.88
  6. Step 6: Final answer
    x = 3,687.56

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1.5x scale

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.