Home / 6,389.64-9,588.16-2,691.56

Finding the Fourth Proportional to 6,389.64, 9,588.16 and 2,691.56

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Solution

The fourth proportional to 6,389.64, 9,588.16 and 2,691.56 is: 4,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.64 : 9,588.16 = 2,691.56 : x
  2. Step 2: Convert to fraction form
    6,389.64/9,588.16 = 2,691.56/x
  3. Step 3: Cross multiply
    6,389.64x = 9,588.16 × 2,691.56
  4. Step 4: Simplify right side
    6,389.64x = 25,807,107.93
  5. Step 5: Solve for x
    x = 25,807,107.93/6,389.64
  6. Step 6: Final answer
    x = 4,038.90

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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.