Home / 2,327.28-3,211.44-1,279.32

Finding the Fourth Proportional to 2,327.28, 3,211.44 and 1,279.32

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Solution

The fourth proportional to 2,327.28, 3,211.44 and 1,279.32 is: 1,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.28 : 3,211.44 = 1,279.32 : x
  2. Step 2: Convert to fraction form
    2,327.28/3,211.44 = 1,279.32/x
  3. Step 3: Cross multiply
    2,327.28x = 3,211.44 × 1,279.32
  4. Step 4: Simplify right side
    2,327.28x = 4,108,459.42
  5. Step 5: Solve for x
    x = 4,108,459.42/2,327.28
  6. Step 6: Final answer
    x = 1,765.35

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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.