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Finding the Fourth Proportional to 6,398.64, 9,590.64 and 2,695.32

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Solution

The fourth proportional to 6,398.64, 9,590.64 and 2,695.32 is: 4,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.64 : 9,590.64 = 2,695.32 : x
  2. Step 2: Convert to fraction form
    6,398.64/9,590.64 = 2,695.32/x
  3. Step 3: Cross multiply
    6,398.64x = 9,590.64 × 2,695.32
  4. Step 4: Simplify right side
    6,398.64x = 25,849,843.80
  5. Step 5: Solve for x
    x = 25,849,843.80/6,398.64
  6. Step 6: Final answer
    x = 4,039.90

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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.