Home / 3,781.53-5,220.95-2,439.54

Finding the Fourth Proportional to 3,781.53, 5,220.95 and 2,439.54

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Solution

The fourth proportional to 3,781.53, 5,220.95 and 2,439.54 is: 3,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.53 : 5,220.95 = 2,439.54 : x
  2. Step 2: Convert to fraction form
    3,781.53/5,220.95 = 2,439.54/x
  3. Step 3: Cross multiply
    3,781.53x = 5,220.95 × 2,439.54
  4. Step 4: Simplify right side
    3,781.53x = 12,736,704.17
  5. Step 5: Solve for x
    x = 12,736,704.17/3,781.53
  6. Step 6: Final answer
    x = 3,368.14

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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.