Home / 3,181.60-4,774.26-1,332.56

Finding the Fourth Proportional to 3,181.60, 4,774.26 and 1,332.56

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Solution

The fourth proportional to 3,181.60, 4,774.26 and 1,332.56 is: 1,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.60 : 4,774.26 = 1,332.56 : x
  2. Step 2: Convert to fraction form
    3,181.60/4,774.26 = 1,332.56/x
  3. Step 3: Cross multiply
    3,181.60x = 4,774.26 × 1,332.56
  4. Step 4: Simplify right side
    3,181.60x = 6,361,987.91
  5. Step 5: Solve for x
    x = 6,361,987.91/3,181.60
  6. Step 6: Final answer
    x = 1,999.62

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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.