Home / 3,915.11-5,402.84-2,343.21

Finding the Fourth Proportional to 3,915.11, 5,402.84 and 2,343.21

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Solution

The fourth proportional to 3,915.11, 5,402.84 and 2,343.21 is: 3,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.11 : 5,402.84 = 2,343.21 : x
  2. Step 2: Convert to fraction form
    3,915.11/5,402.84 = 2,343.21/x
  3. Step 3: Cross multiply
    3,915.11x = 5,402.84 × 2,343.21
  4. Step 4: Simplify right side
    3,915.11x = 12,659,977.00
  5. Step 5: Solve for x
    x = 12,659,977.00/3,915.11
  6. Step 6: Final answer
    x = 3,233.62

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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.