Home / 3,791.16-5,686.56-1,325.88

Finding the Fourth Proportional to 3,791.16, 5,686.56 and 1,325.88

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Solution

The fourth proportional to 3,791.16, 5,686.56 and 1,325.88 is: 1,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.16 : 5,686.56 = 1,325.88 : x
  2. Step 2: Convert to fraction form
    3,791.16/5,686.56 = 1,325.88/x
  3. Step 3: Cross multiply
    3,791.16x = 5,686.56 × 1,325.88
  4. Step 4: Simplify right side
    3,791.16x = 7,539,696.17
  5. Step 5: Solve for x
    x = 7,539,696.17/3,791.16
  6. Step 6: Final answer
    x = 1,988.76

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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.