Home / 2,378.92-3,282.84-1,330.96

Finding the Fourth Proportional to 2,378.92, 3,282.84 and 1,330.96

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Solution

The fourth proportional to 2,378.92, 3,282.84 and 1,330.96 is: 1,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.92 : 3,282.84 = 1,330.96 : x
  2. Step 2: Convert to fraction form
    2,378.92/3,282.84 = 1,330.96/x
  3. Step 3: Cross multiply
    2,378.92x = 3,282.84 × 1,330.96
  4. Step 4: Simplify right side
    2,378.92x = 4,369,328.73
  5. Step 5: Solve for x
    x = 4,369,328.73/2,378.92
  6. Step 6: Final answer
    x = 1,836.69

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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.