Home / 3,521.61-4,859.91-1,949.76

Finding the Fourth Proportional to 3,521.61, 4,859.91 and 1,949.76

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Solution

The fourth proportional to 3,521.61, 4,859.91 and 1,949.76 is: 2,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.61 : 4,859.91 = 1,949.76 : x
  2. Step 2: Convert to fraction form
    3,521.61/4,859.91 = 1,949.76/x
  3. Step 3: Cross multiply
    3,521.61x = 4,859.91 × 1,949.76
  4. Step 4: Simplify right side
    3,521.61x = 9,475,658.12
  5. Step 5: Solve for x
    x = 9,475,658.12/3,521.61
  6. Step 6: Final answer
    x = 2,690.72

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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.