Home / 2,325.66-3,209.68-1,381.68

Finding the Fourth Proportional to 2,325.66, 3,209.68 and 1,381.68

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Solution

The fourth proportional to 2,325.66, 3,209.68 and 1,381.68 is: 1,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,325.66 : 3,209.68 = 1,381.68 : x
  2. Step 2: Convert to fraction form
    2,325.66/3,209.68 = 1,381.68/x
  3. Step 3: Cross multiply
    2,325.66x = 3,209.68 × 1,381.68
  4. Step 4: Simplify right side
    2,325.66x = 4,434,750.66
  5. Step 5: Solve for x
    x = 4,434,750.66/2,325.66
  6. Step 6: Final answer
    x = 1,906.88

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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.