Home / 3,922.16-5,881.80-1,148.12

Finding the Fourth Proportional to 3,922.16, 5,881.80 and 1,148.12

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Solution

The fourth proportional to 3,922.16, 5,881.80 and 1,148.12 is: 1,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.16 : 5,881.80 = 1,148.12 : x
  2. Step 2: Convert to fraction form
    3,922.16/5,881.80 = 1,148.12/x
  3. Step 3: Cross multiply
    3,922.16x = 5,881.80 × 1,148.12
  4. Step 4: Simplify right side
    3,922.16x = 6,753,012.22
  5. Step 5: Solve for x
    x = 6,753,012.22/3,922.16
  6. Step 6: Final answer
    x = 1,721.76

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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.