Home / 3,181.12-4,770.76-1,332.19

Finding the Fourth Proportional to 3,181.12, 4,770.76 and 1,332.19

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Solution

The fourth proportional to 3,181.12, 4,770.76 and 1,332.19 is: 1,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.12 : 4,770.76 = 1,332.19 : x
  2. Step 2: Convert to fraction form
    3,181.12/4,770.76 = 1,332.19/x
  3. Step 3: Cross multiply
    3,181.12x = 4,770.76 × 1,332.19
  4. Step 4: Simplify right side
    3,181.12x = 6,355,531.58
  5. Step 5: Solve for x
    x = 6,355,531.58/3,181.12
  6. Step 6: Final answer
    x = 1,997.89

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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.