Home / 6,439.15-9,663.05-2,279.14

Finding the Fourth Proportional to 6,439.15, 9,663.05 and 2,279.14

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Solution

The fourth proportional to 6,439.15, 9,663.05 and 2,279.14 is: 3,420.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.15 : 9,663.05 = 2,279.14 : x
  2. Step 2: Convert to fraction form
    6,439.15/9,663.05 = 2,279.14/x
  3. Step 3: Cross multiply
    6,439.15x = 9,663.05 × 2,279.14
  4. Step 4: Simplify right side
    6,439.15x = 22,023,443.78
  5. Step 5: Solve for x
    x = 22,023,443.78/6,439.15
  6. Step 6: Final answer
    x = 3,420.24

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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.