Home / 2,787.28-3,837.68-2,366.76

Finding the Fourth Proportional to 2,787.28, 3,837.68 and 2,366.76

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Solution

The fourth proportional to 2,787.28, 3,837.68 and 2,366.76 is: 3,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.28 : 3,837.68 = 2,366.76 : x
  2. Step 2: Convert to fraction form
    2,787.28/3,837.68 = 2,366.76/x
  3. Step 3: Cross multiply
    2,787.28x = 3,837.68 × 2,366.76
  4. Step 4: Simplify right side
    2,787.28x = 9,082,867.52
  5. Step 5: Solve for x
    x = 9,082,867.52/2,787.28
  6. Step 6: Final answer
    x = 3,258.68

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Double scale
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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.