Home / 2,302.78-3,177.66-1,254.76

Finding the Fourth Proportional to 2,302.78, 3,177.66 and 1,254.76

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Solution

The fourth proportional to 2,302.78, 3,177.66 and 1,254.76 is: 1,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.78 : 3,177.66 = 1,254.76 : x
  2. Step 2: Convert to fraction form
    2,302.78/3,177.66 = 1,254.76/x
  3. Step 3: Cross multiply
    2,302.78x = 3,177.66 × 1,254.76
  4. Step 4: Simplify right side
    2,302.78x = 3,987,200.66
  5. Step 5: Solve for x
    x = 3,987,200.66/2,302.78
  6. Step 6: Final answer
    x = 1,731.47

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Half scale
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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.