Home / 3,521.45-4,859.61-1,928.11

Finding the Fourth Proportional to 3,521.45, 4,859.61 and 1,928.11

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Solution

The fourth proportional to 3,521.45, 4,859.61 and 1,928.11 is: 2,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.45 : 4,859.61 = 1,928.11 : x
  2. Step 2: Convert to fraction form
    3,521.45/4,859.61 = 1,928.11/x
  3. Step 3: Cross multiply
    3,521.45x = 4,859.61 × 1,928.11
  4. Step 4: Simplify right side
    3,521.45x = 9,369,862.64
  5. Step 5: Solve for x
    x = 9,369,862.64/3,521.45
  6. Step 6: Final answer
    x = 2,660.80

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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.