Home / 1,610.64-2,227.16-1,278.49

Finding the Fourth Proportional to 1,610.64, 2,227.16 and 1,278.49

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Solution

The fourth proportional to 1,610.64, 2,227.16 and 1,278.49 is: 1,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.64 : 2,227.16 = 1,278.49 : x
  2. Step 2: Convert to fraction form
    1,610.64/2,227.16 = 1,278.49/x
  3. Step 3: Cross multiply
    1,610.64x = 2,227.16 × 1,278.49
  4. Step 4: Simplify right side
    1,610.64x = 2,847,396.40
  5. Step 5: Solve for x
    x = 2,847,396.40/1,610.64
  6. Step 6: Final answer
    x = 1,767.87

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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.