Home / 3,521.28-4,859.44-1,949.42

Finding the Fourth Proportional to 3,521.28, 4,859.44 and 1,949.42

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Solution

The fourth proportional to 3,521.28, 4,859.44 and 1,949.42 is: 2,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.28 : 4,859.44 = 1,949.42 : x
  2. Step 2: Convert to fraction form
    3,521.28/4,859.44 = 1,949.42/x
  3. Step 3: Cross multiply
    3,521.28x = 4,859.44 × 1,949.42
  4. Step 4: Simplify right side
    3,521.28x = 9,473,089.52
  5. Step 5: Solve for x
    x = 9,473,089.52/3,521.28
  6. Step 6: Final answer
    x = 2,690.24

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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.