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Finding the Fourth Proportional to 6,393.64, 9,583.14 and 2,690.32

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Solution

The fourth proportional to 6,393.64, 9,583.14 and 2,690.32 is: 4,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.64 : 9,583.14 = 2,690.32 : x
  2. Step 2: Convert to fraction form
    6,393.64/9,583.14 = 2,690.32/x
  3. Step 3: Cross multiply
    6,393.64x = 9,583.14 × 2,690.32
  4. Step 4: Simplify right side
    6,393.64x = 25,781,713.20
  5. Step 5: Solve for x
    x = 25,781,713.20/6,393.64
  6. Step 6: Final answer
    x = 4,032.40

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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.