Home / 2,515.30-3,471.14-1,396.32

Finding the Fourth Proportional to 2,515.30, 3,471.14 and 1,396.32

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Solution

The fourth proportional to 2,515.30, 3,471.14 and 1,396.32 is: 1,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.30 : 3,471.14 = 1,396.32 : x
  2. Step 2: Convert to fraction form
    2,515.30/3,471.14 = 1,396.32/x
  3. Step 3: Cross multiply
    2,515.30x = 3,471.14 × 1,396.32
  4. Step 4: Simplify right side
    2,515.30x = 4,846,822.20
  5. Step 5: Solve for x
    x = 4,846,822.20/2,515.30
  6. Step 6: Final answer
    x = 1,926.94

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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.