Home / 3,521.68-4,859.85-1,949.77

Finding the Fourth Proportional to 3,521.68, 4,859.85 and 1,949.77

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Solution

The fourth proportional to 3,521.68, 4,859.85 and 1,949.77 is: 2,690.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.68 : 4,859.85 = 1,949.77 : x
  2. Step 2: Convert to fraction form
    3,521.68/4,859.85 = 1,949.77/x
  3. Step 3: Cross multiply
    3,521.68x = 4,859.85 × 1,949.77
  4. Step 4: Simplify right side
    3,521.68x = 9,475,592.15
  5. Step 5: Solve for x
    x = 9,475,592.15/3,521.68
  6. Step 6: Final answer
    x = 2,690.65

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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.