Home / 3,375.28-4,656.45-2,115.48

Finding the Fourth Proportional to 3,375.28, 4,656.45 and 2,115.48

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Solution

The fourth proportional to 3,375.28, 4,656.45 and 2,115.48 is: 2,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.28 : 4,656.45 = 2,115.48 : x
  2. Step 2: Convert to fraction form
    3,375.28/4,656.45 = 2,115.48/x
  3. Step 3: Cross multiply
    3,375.28x = 4,656.45 × 2,115.48
  4. Step 4: Simplify right side
    3,375.28x = 9,850,626.85
  5. Step 5: Solve for x
    x = 9,850,626.85/3,375.28
  6. Step 6: Final answer
    x = 2,918.46

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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.