Home / 3,721.40-5,134.86-2,394.80

Finding the Fourth Proportional to 3,721.40, 5,134.86 and 2,394.80

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Solution

The fourth proportional to 3,721.40, 5,134.86 and 2,394.80 is: 3,304.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.40 : 5,134.86 = 2,394.80 : x
  2. Step 2: Convert to fraction form
    3,721.40/5,134.86 = 2,394.80/x
  3. Step 3: Cross multiply
    3,721.40x = 5,134.86 × 2,394.80
  4. Step 4: Simplify right side
    3,721.40x = 12,296,962.73
  5. Step 5: Solve for x
    x = 12,296,962.73/3,721.40
  6. Step 6: Final answer
    x = 3,304.39

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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.