Home / 2,317.20-3,475.80-673.79

Finding the Fourth Proportional to 2,317.20, 3,475.80 and 673.79

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Solution

The fourth proportional to 2,317.20, 3,475.80 and 673.79 is: 1,010.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.20 : 3,475.80 = 673.79 : x
  2. Step 2: Convert to fraction form
    2,317.20/3,475.80 = 673.79/x
  3. Step 3: Cross multiply
    2,317.20x = 3,475.80 × 673.79
  4. Step 4: Simplify right side
    2,317.20x = 2,341,959.28
  5. Step 5: Solve for x
    x = 2,341,959.28/2,317.20
  6. Step 6: Final answer
    x = 1,010.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.