Home / 3,721.55-5,141.07-2,974.52

Finding the Fourth Proportional to 3,721.55, 5,141.07 and 2,974.52

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Solution

The fourth proportional to 3,721.55, 5,141.07 and 2,974.52 is: 4,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.55 : 5,141.07 = 2,974.52 : x
  2. Step 2: Convert to fraction form
    3,721.55/5,141.07 = 2,974.52/x
  3. Step 3: Cross multiply
    3,721.55x = 5,141.07 × 2,974.52
  4. Step 4: Simplify right side
    3,721.55x = 15,292,228.39
  5. Step 5: Solve for x
    x = 15,292,228.39/3,721.55
  6. Step 6: Final answer
    x = 4,109.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.