Home / 3,528.80-4,869.78-1,956.92

Finding the Fourth Proportional to 3,528.80, 4,869.78 and 1,956.92

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Solution

The fourth proportional to 3,528.80, 4,869.78 and 1,956.92 is: 2,700.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.80 : 4,869.78 = 1,956.92 : x
  2. Step 2: Convert to fraction form
    3,528.80/4,869.78 = 1,956.92/x
  3. Step 3: Cross multiply
    3,528.80x = 4,869.78 × 1,956.92
  4. Step 4: Simplify right side
    3,528.80x = 9,529,769.88
  5. Step 5: Solve for x
    x = 9,529,769.88/3,528.80
  6. Step 6: Final answer
    x = 2,700.57

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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.