Home / 2,515.24-3,471.06-1,396.20

Finding the Fourth Proportional to 2,515.24, 3,471.06 and 1,396.20

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Solution

The fourth proportional to 2,515.24, 3,471.06 and 1,396.20 is: 1,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.24 : 3,471.06 = 1,396.20 : x
  2. Step 2: Convert to fraction form
    2,515.24/3,471.06 = 1,396.20/x
  3. Step 3: Cross multiply
    2,515.24x = 3,471.06 × 1,396.20
  4. Step 4: Simplify right side
    2,515.24x = 4,846,293.97
  5. Step 5: Solve for x
    x = 4,846,293.97/2,515.24
  6. Step 6: Final answer
    x = 1,926.77

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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.