Home / 3,856.18-5,321.17-2,363.80

Finding the Fourth Proportional to 3,856.18, 5,321.17 and 2,363.80

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Solution

The fourth proportional to 3,856.18, 5,321.17 and 2,363.80 is: 3,261.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.18 : 5,321.17 = 2,363.80 : x
  2. Step 2: Convert to fraction form
    3,856.18/5,321.17 = 2,363.80/x
  3. Step 3: Cross multiply
    3,856.18x = 5,321.17 × 2,363.80
  4. Step 4: Simplify right side
    3,856.18x = 12,578,181.65
  5. Step 5: Solve for x
    x = 12,578,181.65/3,856.18
  6. Step 6: Final answer
    x = 3,261.82

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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.