Home / 3,872.47-5,806.27-1,407.24

Finding the Fourth Proportional to 3,872.47, 5,806.27 and 1,407.24

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Solution

The fourth proportional to 3,872.47, 5,806.27 and 1,407.24 is: 2,109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.47 : 5,806.27 = 1,407.24 : x
  2. Step 2: Convert to fraction form
    3,872.47/5,806.27 = 1,407.24/x
  3. Step 3: Cross multiply
    3,872.47x = 5,806.27 × 1,407.24
  4. Step 4: Simplify right side
    3,872.47x = 8,170,815.39
  5. Step 5: Solve for x
    x = 8,170,815.39/3,872.47
  6. Step 6: Final answer
    x = 2,109.98

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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.