Home / 1,962.78-2,708.58-1,264.56

Finding the Fourth Proportional to 1,962.78, 2,708.58 and 1,264.56

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Solution

The fourth proportional to 1,962.78, 2,708.58 and 1,264.56 is: 1,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.78 : 2,708.58 = 1,264.56 : x
  2. Step 2: Convert to fraction form
    1,962.78/2,708.58 = 1,264.56/x
  3. Step 3: Cross multiply
    1,962.78x = 2,708.58 × 1,264.56
  4. Step 4: Simplify right side
    1,962.78x = 3,425,161.92
  5. Step 5: Solve for x
    x = 3,425,161.92/1,962.78
  6. Step 6: Final answer
    x = 1,745.06

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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.