Home / 7,276.72-10,915.08-2,891.92

Finding the Fourth Proportional to 7,276.72, 10,915.08 and 2,891.92

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Solution

The fourth proportional to 7,276.72, 10,915.08 and 2,891.92 is: 4,337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.72 : 10,915.08 = 2,891.92 : x
  2. Step 2: Convert to fraction form
    7,276.72/10,915.08 = 2,891.92/x
  3. Step 3: Cross multiply
    7,276.72x = 10,915.08 × 2,891.92
  4. Step 4: Simplify right side
    7,276.72x = 31,565,538.15
  5. Step 5: Solve for x
    x = 31,565,538.15/7,276.72
  6. Step 6: Final answer
    x = 4,337.88

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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.