Home / 2,378.67-3,282.48-1,330.71

Finding the Fourth Proportional to 2,378.67, 3,282.48 and 1,330.71

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Solution

The fourth proportional to 2,378.67, 3,282.48 and 1,330.71 is: 1,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.67 : 3,282.48 = 1,330.71 : x
  2. Step 2: Convert to fraction form
    2,378.67/3,282.48 = 1,330.71/x
  3. Step 3: Cross multiply
    2,378.67x = 3,282.48 × 1,330.71
  4. Step 4: Simplify right side
    2,378.67x = 4,368,028.96
  5. Step 5: Solve for x
    x = 4,368,028.96/2,378.67
  6. Step 6: Final answer
    x = 1,836.33

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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.