Home / 1,665.24-2,496.46-1,115.76

Finding the Fourth Proportional to 1,665.24, 2,496.46 and 1,115.76

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Solution

The fourth proportional to 1,665.24, 2,496.46 and 1,115.76 is: 1,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.24 : 2,496.46 = 1,115.76 : x
  2. Step 2: Convert to fraction form
    1,665.24/2,496.46 = 1,115.76/x
  3. Step 3: Cross multiply
    1,665.24x = 2,496.46 × 1,115.76
  4. Step 4: Simplify right side
    1,665.24x = 2,785,450.21
  5. Step 5: Solve for x
    x = 2,785,450.21/1,665.24
  6. Step 6: Final answer
    x = 1,672.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.