Home / 3,188.40-4,780.98-1,241.16

Finding the Fourth Proportional to 3,188.40, 4,780.98 and 1,241.16

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Solution

The fourth proportional to 3,188.40, 4,780.98 and 1,241.16 is: 1,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.40 : 4,780.98 = 1,241.16 : x
  2. Step 2: Convert to fraction form
    3,188.40/4,780.98 = 1,241.16/x
  3. Step 3: Cross multiply
    3,188.40x = 4,780.98 × 1,241.16
  4. Step 4: Simplify right side
    3,188.40x = 5,933,961.14
  5. Step 5: Solve for x
    x = 5,933,961.14/3,188.40
  6. Step 6: Final answer
    x = 1,861.11

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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.