Home / 2,353.68-3,527.46-1,121.49

Finding the Fourth Proportional to 2,353.68, 3,527.46 and 1,121.49

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Solution

The fourth proportional to 2,353.68, 3,527.46 and 1,121.49 is: 1,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.68 : 3,527.46 = 1,121.49 : x
  2. Step 2: Convert to fraction form
    2,353.68/3,527.46 = 1,121.49/x
  3. Step 3: Cross multiply
    2,353.68x = 3,527.46 × 1,121.49
  4. Step 4: Simplify right side
    2,353.68x = 3,956,011.12
  5. Step 5: Solve for x
    x = 3,956,011.12/2,353.68
  6. Step 6: Final answer
    x = 1,680.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.