Home / 3,856.86-5,321.16-2,530.44

Finding the Fourth Proportional to 3,856.86, 5,321.16 and 2,530.44

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Solution

The fourth proportional to 3,856.86, 5,321.16 and 2,530.44 is: 3,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.86 : 5,321.16 = 2,530.44 : x
  2. Step 2: Convert to fraction form
    3,856.86/5,321.16 = 2,530.44/x
  3. Step 3: Cross multiply
    3,856.86x = 5,321.16 × 2,530.44
  4. Step 4: Simplify right side
    3,856.86x = 13,464,876.11
  5. Step 5: Solve for x
    x = 13,464,876.11/3,856.86
  6. Step 6: Final answer
    x = 3,491.15

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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.