Home / 2,515.62-3,471.54-1,396.56

Finding the Fourth Proportional to 2,515.62, 3,471.54 and 1,396.56

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Solution

The fourth proportional to 2,515.62, 3,471.54 and 1,396.56 is: 1,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.62 : 3,471.54 = 1,396.56 : x
  2. Step 2: Convert to fraction form
    2,515.62/3,471.54 = 1,396.56/x
  3. Step 3: Cross multiply
    2,515.62x = 3,471.54 × 1,396.56
  4. Step 4: Simplify right side
    2,515.62x = 4,848,213.90
  5. Step 5: Solve for x
    x = 4,848,213.90/2,515.62
  6. Step 6: Final answer
    x = 1,927.24

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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.