Home / 2,341.31-3,231.09-1,279.13

Finding the Fourth Proportional to 2,341.31, 3,231.09 and 1,279.13

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Solution

The fourth proportional to 2,341.31, 3,231.09 and 1,279.13 is: 1,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.31 : 3,231.09 = 1,279.13 : x
  2. Step 2: Convert to fraction form
    2,341.31/3,231.09 = 1,279.13/x
  3. Step 3: Cross multiply
    2,341.31x = 3,231.09 × 1,279.13
  4. Step 4: Simplify right side
    2,341.31x = 4,132,968.00
  5. Step 5: Solve for x
    x = 4,132,968.00/2,341.31
  6. Step 6: Final answer
    x = 1,765.24

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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.