Home / 3,521.29-5,278.52-1,959.87

Finding the Fourth Proportional to 3,521.29, 5,278.52 and 1,959.87

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Solution

The fourth proportional to 3,521.29, 5,278.52 and 1,959.87 is: 2,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.29 : 5,278.52 = 1,959.87 : x
  2. Step 2: Convert to fraction form
    3,521.29/5,278.52 = 1,959.87/x
  3. Step 3: Cross multiply
    3,521.29x = 5,278.52 × 1,959.87
  4. Step 4: Simplify right side
    3,521.29x = 10,345,191.50
  5. Step 5: Solve for x
    x = 10,345,191.50/3,521.29
  6. Step 6: Final answer
    x = 2,937.90

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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.