Home / 3,387.38-5,080.37-1,306.67

Finding the Fourth Proportional to 3,387.38, 5,080.37 and 1,306.67

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Solution

The fourth proportional to 3,387.38, 5,080.37 and 1,306.67 is: 1,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.38 : 5,080.37 = 1,306.67 : x
  2. Step 2: Convert to fraction form
    3,387.38/5,080.37 = 1,306.67/x
  3. Step 3: Cross multiply
    3,387.38x = 5,080.37 × 1,306.67
  4. Step 4: Simplify right side
    3,387.38x = 6,638,367.07
  5. Step 5: Solve for x
    x = 6,638,367.07/3,387.38
  6. Step 6: Final answer
    x = 1,959.73

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1.5x scale

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.