Home / 2,578.20-3,556.60-1,632.40

Finding the Fourth Proportional to 2,578.20, 3,556.60 and 1,632.40

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Solution

The fourth proportional to 2,578.20, 3,556.60 and 1,632.40 is: 2,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.20 : 3,556.60 = 1,632.40 : x
  2. Step 2: Convert to fraction form
    2,578.20/3,556.60 = 1,632.40/x
  3. Step 3: Cross multiply
    2,578.20x = 3,556.60 × 1,632.40
  4. Step 4: Simplify right side
    2,578.20x = 5,805,793.84
  5. Step 5: Solve for x
    x = 5,805,793.84/2,578.20
  6. Step 6: Final answer
    x = 2,251.88

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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.