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Finding the Fourth Proportional to 2,662.65, 3,674.19 and 1,543.95

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Solution

The fourth proportional to 2,662.65, 3,674.19 and 1,543.95 is: 2,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.65 : 3,674.19 = 1,543.95 : x
  2. Step 2: Convert to fraction form
    2,662.65/3,674.19 = 1,543.95/x
  3. Step 3: Cross multiply
    2,662.65x = 3,674.19 × 1,543.95
  4. Step 4: Simplify right side
    2,662.65x = 5,672,765.65
  5. Step 5: Solve for x
    x = 5,672,765.65/2,662.65
  6. Step 6: Final answer
    x = 2,130.50

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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.