Home / 4,188.16-5,780.16-2,861.44

Finding the Fourth Proportional to 4,188.16, 5,780.16 and 2,861.44

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Solution

The fourth proportional to 4,188.16, 5,780.16 and 2,861.44 is: 3,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.16 : 5,780.16 = 2,861.44 : x
  2. Step 2: Convert to fraction form
    4,188.16/5,780.16 = 2,861.44/x
  3. Step 3: Cross multiply
    4,188.16x = 5,780.16 × 2,861.44
  4. Step 4: Simplify right side
    4,188.16x = 16,539,581.03
  5. Step 5: Solve for x
    x = 16,539,581.03/4,188.16
  6. Step 6: Final answer
    x = 3,949.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.