Home / 3,181.12-4,772.08-1,333.52

Finding the Fourth Proportional to 3,181.12, 4,772.08 and 1,333.52

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Solution

The fourth proportional to 3,181.12, 4,772.08 and 1,333.52 is: 2,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.12 : 4,772.08 = 1,333.52 : x
  2. Step 2: Convert to fraction form
    3,181.12/4,772.08 = 1,333.52/x
  3. Step 3: Cross multiply
    3,181.12x = 4,772.08 × 1,333.52
  4. Step 4: Simplify right side
    3,181.12x = 6,363,664.12
  5. Step 5: Solve for x
    x = 6,363,664.12/3,181.12
  6. Step 6: Final answer
    x = 2,000.45

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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.