Home / 3,132.56-4,689.65-1,648.28

Finding the Fourth Proportional to 3,132.56, 4,689.65 and 1,648.28

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Solution

The fourth proportional to 3,132.56, 4,689.65 and 1,648.28 is: 2,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.56 : 4,689.65 = 1,648.28 : x
  2. Step 2: Convert to fraction form
    3,132.56/4,689.65 = 1,648.28/x
  3. Step 3: Cross multiply
    3,132.56x = 4,689.65 × 1,648.28
  4. Step 4: Simplify right side
    3,132.56x = 7,729,824.61
  5. Step 5: Solve for x
    x = 7,729,824.61/3,132.56
  6. Step 6: Final answer
    x = 2,467.58

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1.5x scale

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.