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Finding the Fourth Proportional to 3,393.75, 5,091.66 and 2,806.07

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Solution

The fourth proportional to 3,393.75, 5,091.66 and 2,806.07 is: 4,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.75 : 5,091.66 = 2,806.07 : x
  2. Step 2: Convert to fraction form
    3,393.75/5,091.66 = 2,806.07/x
  3. Step 3: Cross multiply
    3,393.75x = 5,091.66 × 2,806.07
  4. Step 4: Simplify right side
    3,393.75x = 14,287,543.24
  5. Step 5: Solve for x
    x = 14,287,543.24/3,393.75
  6. Step 6: Final answer
    x = 4,209.96

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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.