Home / 3,960.20-5,938.59-1,618.74

Finding the Fourth Proportional to 3,960.20, 5,938.59 and 1,618.74

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Solution

The fourth proportional to 3,960.20, 5,938.59 and 1,618.74 is: 2,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.20 : 5,938.59 = 1,618.74 : x
  2. Step 2: Convert to fraction form
    3,960.20/5,938.59 = 1,618.74/x
  3. Step 3: Cross multiply
    3,960.20x = 5,938.59 × 1,618.74
  4. Step 4: Simplify right side
    3,960.20x = 9,613,033.18
  5. Step 5: Solve for x
    x = 9,613,033.18/3,960.20
  6. Step 6: Final answer
    x = 2,427.41

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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.