Home / 2,728.16-3,761.56-2,307.76

Finding the Fourth Proportional to 2,728.16, 3,761.56 and 2,307.76

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Solution

The fourth proportional to 2,728.16, 3,761.56 and 2,307.76 is: 3,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.16 : 3,761.56 = 2,307.76 : x
  2. Step 2: Convert to fraction form
    2,728.16/3,761.56 = 2,307.76/x
  3. Step 3: Cross multiply
    2,728.16x = 3,761.56 × 2,307.76
  4. Step 4: Simplify right side
    2,728.16x = 8,680,777.71
  5. Step 5: Solve for x
    x = 8,680,777.71/2,728.16
  6. Step 6: Final answer
    x = 3,181.92

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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.