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Finding the Fourth Proportional to 3,984.53, 5,497.07 and 2,391.23

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Solution

The fourth proportional to 3,984.53, 5,497.07 and 2,391.23 is: 3,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.53 : 5,497.07 = 2,391.23 : x
  2. Step 2: Convert to fraction form
    3,984.53/5,497.07 = 2,391.23/x
  3. Step 3: Cross multiply
    3,984.53x = 5,497.07 × 2,391.23
  4. Step 4: Simplify right side
    3,984.53x = 13,144,760.48
  5. Step 5: Solve for x
    x = 13,144,760.48/3,984.53
  6. Step 6: Final answer
    x = 3,298.95

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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.