Home / 5,146.88-7,720.38-1,684.13

Finding the Fourth Proportional to 5,146.88, 7,720.38 and 1,684.13

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Solution

The fourth proportional to 5,146.88, 7,720.38 and 1,684.13 is: 2,526.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.88 : 7,720.38 = 1,684.13 : x
  2. Step 2: Convert to fraction form
    5,146.88/7,720.38 = 1,684.13/x
  3. Step 3: Cross multiply
    5,146.88x = 7,720.38 × 1,684.13
  4. Step 4: Simplify right side
    5,146.88x = 13,002,084.97
  5. Step 5: Solve for x
    x = 13,002,084.97/5,146.88
  6. Step 6: Final answer
    x = 2,526.21

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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.