Home / 3,521.14-4,859.16-1,949.20

Finding the Fourth Proportional to 3,521.14, 4,859.16 and 1,949.20

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Solution

The fourth proportional to 3,521.14, 4,859.16 and 1,949.20 is: 2,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.14 : 4,859.16 = 1,949.20 : x
  2. Step 2: Convert to fraction form
    3,521.14/4,859.16 = 1,949.20/x
  3. Step 3: Cross multiply
    3,521.14x = 4,859.16 × 1,949.20
  4. Step 4: Simplify right side
    3,521.14x = 9,471,474.67
  5. Step 5: Solve for x
    x = 9,471,474.67/3,521.14
  6. Step 6: Final answer
    x = 2,689.89

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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.