Home / 3,277.30-4,915.95-3,147.70

Finding the Fourth Proportional to 3,277.30, 4,915.95 and 3,147.70

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Solution

The fourth proportional to 3,277.30, 4,915.95 and 3,147.70 is: 4,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,277.30 : 4,915.95 = 3,147.70 : x
  2. Step 2: Convert to fraction form
    3,277.30/4,915.95 = 3,147.70/x
  3. Step 3: Cross multiply
    3,277.30x = 4,915.95 × 3,147.70
  4. Step 4: Simplify right side
    3,277.30x = 15,473,935.82
  5. Step 5: Solve for x
    x = 15,473,935.82/3,277.30
  6. Step 6: Final answer
    x = 4,721.55

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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.