Home / 3,862.63-5,791.39-1,397.13

Finding the Fourth Proportional to 3,862.63, 5,791.39 and 1,397.13

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Solution

The fourth proportional to 3,862.63, 5,791.39 and 1,397.13 is: 2,094.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.63 : 5,791.39 = 1,397.13 : x
  2. Step 2: Convert to fraction form
    3,862.63/5,791.39 = 1,397.13/x
  3. Step 3: Cross multiply
    3,862.63x = 5,791.39 × 1,397.13
  4. Step 4: Simplify right side
    3,862.63x = 8,091,299.50
  5. Step 5: Solve for x
    x = 8,091,299.50/3,862.63
  6. Step 6: Final answer
    x = 2,094.76

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1.5x scale

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.