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Finding the Fourth Proportional to 3,194.65, 4,407.96 and 1,868.10

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Solution

The fourth proportional to 3,194.65, 4,407.96 and 1,868.10 is: 2,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.65 : 4,407.96 = 1,868.10 : x
  2. Step 2: Convert to fraction form
    3,194.65/4,407.96 = 1,868.10/x
  3. Step 3: Cross multiply
    3,194.65x = 4,407.96 × 1,868.10
  4. Step 4: Simplify right side
    3,194.65x = 8,234,510.08
  5. Step 5: Solve for x
    x = 8,234,510.08/3,194.65
  6. Step 6: Final answer
    x = 2,577.59

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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.