Home / 2,341.12-3,231.78-1,397.24

Finding the Fourth Proportional to 2,341.12, 3,231.78 and 1,397.24

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Solution

The fourth proportional to 2,341.12, 3,231.78 and 1,397.24 is: 1,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.12 : 3,231.78 = 1,397.24 : x
  2. Step 2: Convert to fraction form
    2,341.12/3,231.78 = 1,397.24/x
  3. Step 3: Cross multiply
    2,341.12x = 3,231.78 × 1,397.24
  4. Step 4: Simplify right side
    2,341.12x = 4,515,572.29
  5. Step 5: Solve for x
    x = 4,515,572.29/2,341.12
  6. Step 6: Final answer
    x = 1,928.81

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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.