Home / 3,856.32-5,319.36-2,282.88

Finding the Fourth Proportional to 3,856.32, 5,319.36 and 2,282.88

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Solution

The fourth proportional to 3,856.32, 5,319.36 and 2,282.88 is: 3,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.32 : 5,319.36 = 2,282.88 : x
  2. Step 2: Convert to fraction form
    3,856.32/5,319.36 = 2,282.88/x
  3. Step 3: Cross multiply
    3,856.32x = 5,319.36 × 2,282.88
  4. Step 4: Simplify right side
    3,856.32x = 12,143,460.56
  5. Step 5: Solve for x
    x = 12,143,460.56/3,856.32
  6. Step 6: Final answer
    x = 3,148.98

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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.