Home / 3,915.75-5,403.56-2,344.71

Finding the Fourth Proportional to 3,915.75, 5,403.56 and 2,344.71

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Solution

The fourth proportional to 3,915.75, 5,403.56 and 2,344.71 is: 3,235.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.75 : 5,403.56 = 2,344.71 : x
  2. Step 2: Convert to fraction form
    3,915.75/5,403.56 = 2,344.71/x
  3. Step 3: Cross multiply
    3,915.75x = 5,403.56 × 2,344.71
  4. Step 4: Simplify right side
    3,915.75x = 12,669,769.44
  5. Step 5: Solve for x
    x = 12,669,769.44/3,915.75
  6. Step 6: Final answer
    x = 3,235.59

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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.