Home / 4,915.88-6,781.36-3,049.64

Finding the Fourth Proportional to 4,915.88, 6,781.36 and 3,049.64

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Solution

The fourth proportional to 4,915.88, 6,781.36 and 3,049.64 is: 4,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.88 : 6,781.36 = 3,049.64 : x
  2. Step 2: Convert to fraction form
    4,915.88/6,781.36 = 3,049.64/x
  3. Step 3: Cross multiply
    4,915.88x = 6,781.36 × 3,049.64
  4. Step 4: Simplify right side
    4,915.88x = 20,680,706.71
  5. Step 5: Solve for x
    x = 20,680,706.71/4,915.88
  6. Step 6: Final answer
    x = 4,206.92

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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.