Home / 2,277.30-3,142.96-1,392.92

Finding the Fourth Proportional to 2,277.30, 3,142.96 and 1,392.92

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Solution

The fourth proportional to 2,277.30, 3,142.96 and 1,392.92 is: 1,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.30 : 3,142.96 = 1,392.92 : x
  2. Step 2: Convert to fraction form
    2,277.30/3,142.96 = 1,392.92/x
  3. Step 3: Cross multiply
    2,277.30x = 3,142.96 × 1,392.92
  4. Step 4: Simplify right side
    2,277.30x = 4,377,891.84
  5. Step 5: Solve for x
    x = 4,377,891.84/2,277.30
  6. Step 6: Final answer
    x = 1,922.40

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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.