Home / 2,515.14-3,471.18-1,816.92

Finding the Fourth Proportional to 2,515.14, 3,471.18 and 1,816.92

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Solution

The fourth proportional to 2,515.14, 3,471.18 and 1,816.92 is: 2,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.14 : 3,471.18 = 1,816.92 : x
  2. Step 2: Convert to fraction form
    2,515.14/3,471.18 = 1,816.92/x
  3. Step 3: Cross multiply
    2,515.14x = 3,471.18 × 1,816.92
  4. Step 4: Simplify right side
    2,515.14x = 6,306,856.37
  5. Step 5: Solve for x
    x = 6,306,856.37/2,515.14
  6. Step 6: Final answer
    x = 2,507.56

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Double scale
Find fourth proportional to 2,516.14, 3,472.56 and 1,817.92
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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.