Home / 3,001.28-4,137.35-1,938.96

Finding the Fourth Proportional to 3,001.28, 4,137.35 and 1,938.96

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Solution

The fourth proportional to 3,001.28, 4,137.35 and 1,938.96 is: 2,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.28 : 4,137.35 = 1,938.96 : x
  2. Step 2: Convert to fraction form
    3,001.28/4,137.35 = 1,938.96/x
  3. Step 3: Cross multiply
    3,001.28x = 4,137.35 × 1,938.96
  4. Step 4: Simplify right side
    3,001.28x = 8,022,146.46
  5. Step 5: Solve for x
    x = 8,022,146.46/3,001.28
  6. Step 6: Final answer
    x = 2,672.91

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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.