Home / 3,561.92-4,915.84-2,164.64

Finding the Fourth Proportional to 3,561.92, 4,915.84 and 2,164.64

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Solution

The fourth proportional to 3,561.92, 4,915.84 and 2,164.64 is: 2,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.92 : 4,915.84 = 2,164.64 : x
  2. Step 2: Convert to fraction form
    3,561.92/4,915.84 = 2,164.64/x
  3. Step 3: Cross multiply
    3,561.92x = 4,915.84 × 2,164.64
  4. Step 4: Simplify right side
    3,561.92x = 10,641,023.90
  5. Step 5: Solve for x
    x = 10,641,023.90/3,561.92
  6. Step 6: Final answer
    x = 2,987.44

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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.