Home / 2,487.38-3,434.13-1,604.81

Finding the Fourth Proportional to 2,487.38, 3,434.13 and 1,604.81

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Solution

The fourth proportional to 2,487.38, 3,434.13 and 1,604.81 is: 2,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.38 : 3,434.13 = 1,604.81 : x
  2. Step 2: Convert to fraction form
    2,487.38/3,434.13 = 1,604.81/x
  3. Step 3: Cross multiply
    2,487.38x = 3,434.13 × 1,604.81
  4. Step 4: Simplify right side
    2,487.38x = 5,511,134.75
  5. Step 5: Solve for x
    x = 5,511,134.75/2,487.38
  6. Step 6: Final answer
    x = 2,215.64

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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.