Home / 3,721.53-5,135.76-2,149.59

Finding the Fourth Proportional to 3,721.53, 5,135.76 and 2,149.59

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Solution

The fourth proportional to 3,721.53, 5,135.76 and 2,149.59 is: 2,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.53 : 5,135.76 = 2,149.59 : x
  2. Step 2: Convert to fraction form
    3,721.53/5,135.76 = 2,149.59/x
  3. Step 3: Cross multiply
    3,721.53x = 5,135.76 × 2,149.59
  4. Step 4: Simplify right side
    3,721.53x = 11,039,778.34
  5. Step 5: Solve for x
    x = 11,039,778.34/3,721.53
  6. Step 6: Final answer
    x = 2,966.46

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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.