Home / 2,515.38-3,471.32-1,396.24

Finding the Fourth Proportional to 2,515.38, 3,471.32 and 1,396.24

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Solution

The fourth proportional to 2,515.38, 3,471.32 and 1,396.24 is: 1,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.38 : 3,471.32 = 1,396.24 : x
  2. Step 2: Convert to fraction form
    2,515.38/3,471.32 = 1,396.24/x
  3. Step 3: Cross multiply
    2,515.38x = 3,471.32 × 1,396.24
  4. Step 4: Simplify right side
    2,515.38x = 4,846,795.84
  5. Step 5: Solve for x
    x = 4,846,795.84/2,515.38
  6. Step 6: Final answer
    x = 1,926.86

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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.