Home / 2,341.17-3,230.67-1,278.72

Finding the Fourth Proportional to 2,341.17, 3,230.67 and 1,278.72

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Solution

The fourth proportional to 2,341.17, 3,230.67 and 1,278.72 is: 1,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.17 : 3,230.67 = 1,278.72 : x
  2. Step 2: Convert to fraction form
    2,341.17/3,230.67 = 1,278.72/x
  3. Step 3: Cross multiply
    2,341.17x = 3,230.67 × 1,278.72
  4. Step 4: Simplify right side
    2,341.17x = 4,131,101.20
  5. Step 5: Solve for x
    x = 4,131,101.20/2,341.17
  6. Step 6: Final answer
    x = 1,764.55

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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.