Home / 2,158.32-3,232.44-1,425.78

Finding the Fourth Proportional to 2,158.32, 3,232.44 and 1,425.78

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Solution

The fourth proportional to 2,158.32, 3,232.44 and 1,425.78 is: 2,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.32 : 3,232.44 = 1,425.78 : x
  2. Step 2: Convert to fraction form
    2,158.32/3,232.44 = 1,425.78/x
  3. Step 3: Cross multiply
    2,158.32x = 3,232.44 × 1,425.78
  4. Step 4: Simplify right side
    2,158.32x = 4,608,748.30
  5. Step 5: Solve for x
    x = 4,608,748.30/2,158.32
  6. Step 6: Final answer
    x = 2,135.34

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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.