Home / 3,616.78-5,427.36-1,425.10

Finding the Fourth Proportional to 3,616.78, 5,427.36 and 1,425.10

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Solution

The fourth proportional to 3,616.78, 5,427.36 and 1,425.10 is: 2,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.78 : 5,427.36 = 1,425.10 : x
  2. Step 2: Convert to fraction form
    3,616.78/5,427.36 = 1,425.10/x
  3. Step 3: Cross multiply
    3,616.78x = 5,427.36 × 1,425.10
  4. Step 4: Simplify right side
    3,616.78x = 7,734,530.74
  5. Step 5: Solve for x
    x = 7,734,530.74/3,616.78
  6. Step 6: Final answer
    x = 2,138.51

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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.