Home / 2,341.35-3,231.01-1,279.15

Finding the Fourth Proportional to 2,341.35, 3,231.01 and 1,279.15

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Solution

The fourth proportional to 2,341.35, 3,231.01 and 1,279.15 is: 1,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.35 : 3,231.01 = 1,279.15 : x
  2. Step 2: Convert to fraction form
    2,341.35/3,231.01 = 1,279.15/x
  3. Step 3: Cross multiply
    2,341.35x = 3,231.01 × 1,279.15
  4. Step 4: Simplify right side
    2,341.35x = 4,132,946.44
  5. Step 5: Solve for x
    x = 4,132,946.44/2,341.35
  6. Step 6: Final answer
    x = 1,765.20

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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.