Home / 3,081.47-4,247.44-2,408.10

Finding the Fourth Proportional to 3,081.47, 4,247.44 and 2,408.10

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Solution

The fourth proportional to 3,081.47, 4,247.44 and 2,408.10 is: 3,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.47 : 4,247.44 = 2,408.10 : x
  2. Step 2: Convert to fraction form
    3,081.47/4,247.44 = 2,408.10/x
  3. Step 3: Cross multiply
    3,081.47x = 4,247.44 × 2,408.10
  4. Step 4: Simplify right side
    3,081.47x = 10,228,248.22
  5. Step 5: Solve for x
    x = 10,228,248.22/3,081.47
  6. Step 6: Final answer
    x = 3,319.28

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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.