Home / 3,071.38-4,607.88-2,231.20

Finding the Fourth Proportional to 3,071.38, 4,607.88 and 2,231.20

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Solution

The fourth proportional to 3,071.38, 4,607.88 and 2,231.20 is: 3,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.38 : 4,607.88 = 2,231.20 : x
  2. Step 2: Convert to fraction form
    3,071.38/4,607.88 = 2,231.20/x
  3. Step 3: Cross multiply
    3,071.38x = 4,607.88 × 2,231.20
  4. Step 4: Simplify right side
    3,071.38x = 10,281,101.86
  5. Step 5: Solve for x
    x = 10,281,101.86/3,071.38
  6. Step 6: Final answer
    x = 3,347.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.