Home / 4,081.08-5,630.28-2,887.80

Finding the Fourth Proportional to 4,081.08, 5,630.28 and 2,887.80

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Solution

The fourth proportional to 4,081.08, 5,630.28 and 2,887.80 is: 3,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.08 : 5,630.28 = 2,887.80 : x
  2. Step 2: Convert to fraction form
    4,081.08/5,630.28 = 2,887.80/x
  3. Step 3: Cross multiply
    4,081.08x = 5,630.28 × 2,887.80
  4. Step 4: Simplify right side
    4,081.08x = 16,259,122.58
  5. Step 5: Solve for x
    x = 16,259,122.58/4,081.08
  6. Step 6: Final answer
    x = 3,984.02

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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.