Home / 7,838.16-11,757.28-2,644.08

Finding the Fourth Proportional to 7,838.16, 11,757.28 and 2,644.08

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Solution

The fourth proportional to 7,838.16, 11,757.28 and 2,644.08 is: 3,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.16 : 11,757.28 = 2,644.08 : x
  2. Step 2: Convert to fraction form
    7,838.16/11,757.28 = 2,644.08/x
  3. Step 3: Cross multiply
    7,838.16x = 11,757.28 × 2,644.08
  4. Step 4: Simplify right side
    7,838.16x = 31,087,188.90
  5. Step 5: Solve for x
    x = 31,087,188.90/7,838.16
  6. Step 6: Final answer
    x = 3,966.13

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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.