Home / 3,181.13-4,780.80-3,162.90

Finding the Fourth Proportional to 3,181.13, 4,780.80 and 3,162.90

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Solution

The fourth proportional to 3,181.13, 4,780.80 and 3,162.90 is: 4,753.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.13 : 4,780.80 = 3,162.90 : x
  2. Step 2: Convert to fraction form
    3,181.13/4,780.80 = 3,162.90/x
  3. Step 3: Cross multiply
    3,181.13x = 4,780.80 × 3,162.90
  4. Step 4: Simplify right side
    3,181.13x = 15,121,192.32
  5. Step 5: Solve for x
    x = 15,121,192.32/3,181.13
  6. Step 6: Final answer
    x = 4,753.41

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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.