Home / 2,320.13-3,481.56-860.30

Finding the Fourth Proportional to 2,320.13, 3,481.56 and 860.30

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Solution

The fourth proportional to 2,320.13, 3,481.56 and 860.30 is: 1,290.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.13 : 3,481.56 = 860.30 : x
  2. Step 2: Convert to fraction form
    2,320.13/3,481.56 = 860.30/x
  3. Step 3: Cross multiply
    2,320.13x = 3,481.56 × 860.30
  4. Step 4: Simplify right side
    2,320.13x = 2,995,186.07
  5. Step 5: Solve for x
    x = 2,995,186.07/2,320.13
  6. Step 6: Final answer
    x = 1,290.96

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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.