Home / 2,192.72-3,289.84-1,568.64

Finding the Fourth Proportional to 2,192.72, 3,289.84 and 1,568.64

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Solution

The fourth proportional to 2,192.72, 3,289.84 and 1,568.64 is: 2,353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.72 : 3,289.84 = 1,568.64 : x
  2. Step 2: Convert to fraction form
    2,192.72/3,289.84 = 1,568.64/x
  3. Step 3: Cross multiply
    2,192.72x = 3,289.84 × 1,568.64
  4. Step 4: Simplify right side
    2,192.72x = 5,160,574.62
  5. Step 5: Solve for x
    x = 5,160,574.62/2,192.72
  6. Step 6: Final answer
    x = 2,353.50

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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.