Home / 3,915.18-5,872.86-1,141.92

Finding the Fourth Proportional to 3,915.18, 5,872.86 and 1,141.92

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Solution

The fourth proportional to 3,915.18, 5,872.86 and 1,141.92 is: 1,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.18 : 5,872.86 = 1,141.92 : x
  2. Step 2: Convert to fraction form
    3,915.18/5,872.86 = 1,141.92/x
  3. Step 3: Cross multiply
    3,915.18x = 5,872.86 × 1,141.92
  4. Step 4: Simplify right side
    3,915.18x = 6,706,336.29
  5. Step 5: Solve for x
    x = 6,706,336.29/3,915.18
  6. Step 6: Final answer
    x = 1,712.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.