Home / 3,125.12-4,684.80-2,543.36

Finding the Fourth Proportional to 3,125.12, 4,684.80 and 2,543.36

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Solution

The fourth proportional to 3,125.12, 4,684.80 and 2,543.36 is: 3,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.12 : 4,684.80 = 2,543.36 : x
  2. Step 2: Convert to fraction form
    3,125.12/4,684.80 = 2,543.36/x
  3. Step 3: Cross multiply
    3,125.12x = 4,684.80 × 2,543.36
  4. Step 4: Simplify right side
    3,125.12x = 11,915,132.93
  5. Step 5: Solve for x
    x = 11,915,132.93/3,125.12
  6. Step 6: Final answer
    x = 3,812.70

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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.