Home / 2,341.56-3,231.28-1,397.76

Finding the Fourth Proportional to 2,341.56, 3,231.28 and 1,397.76

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Solution

The fourth proportional to 2,341.56, 3,231.28 and 1,397.76 is: 1,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.56 : 3,231.28 = 1,397.76 : x
  2. Step 2: Convert to fraction form
    2,341.56/3,231.28 = 1,397.76/x
  3. Step 3: Cross multiply
    2,341.56x = 3,231.28 × 1,397.76
  4. Step 4: Simplify right side
    2,341.56x = 4,516,553.93
  5. Step 5: Solve for x
    x = 4,516,553.93/2,341.56
  6. Step 6: Final answer
    x = 1,928.87

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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.