Home / 2,381.66-3,282.99-1,938.79

Finding the Fourth Proportional to 2,381.66, 3,282.99 and 1,938.79

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Solution

The fourth proportional to 2,381.66, 3,282.99 and 1,938.79 is: 2,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.66 : 3,282.99 = 1,938.79 : x
  2. Step 2: Convert to fraction form
    2,381.66/3,282.99 = 1,938.79/x
  3. Step 3: Cross multiply
    2,381.66x = 3,282.99 × 1,938.79
  4. Step 4: Simplify right side
    2,381.66x = 6,365,028.18
  5. Step 5: Solve for x
    x = 6,365,028.18/2,381.66
  6. Step 6: Final answer
    x = 2,672.52

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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.