Home / 3,856.76-5,319.96-2,284.46

Finding the Fourth Proportional to 3,856.76, 5,319.96 and 2,284.46

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Solution

The fourth proportional to 3,856.76, 5,319.96 and 2,284.46 is: 3,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.76 : 5,319.96 = 2,284.46 : x
  2. Step 2: Convert to fraction form
    3,856.76/5,319.96 = 2,284.46/x
  3. Step 3: Cross multiply
    3,856.76x = 5,319.96 × 2,284.46
  4. Step 4: Simplify right side
    3,856.76x = 12,153,235.82
  5. Step 5: Solve for x
    x = 12,153,235.82/3,856.76
  6. Step 6: Final answer
    x = 3,151.15

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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.