Home / 2,515.62-3,471.65-1,381.33

Finding the Fourth Proportional to 2,515.62, 3,471.65 and 1,381.33

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Solution

The fourth proportional to 2,515.62, 3,471.65 and 1,381.33 is: 1,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.62 : 3,471.65 = 1,381.33 : x
  2. Step 2: Convert to fraction form
    2,515.62/3,471.65 = 1,381.33/x
  3. Step 3: Cross multiply
    2,515.62x = 3,471.65 × 1,381.33
  4. Step 4: Simplify right side
    2,515.62x = 4,795,494.29
  5. Step 5: Solve for x
    x = 4,795,494.29/2,515.62
  6. Step 6: Final answer
    x = 1,906.29

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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.