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Finding the Fourth Proportional to 2,666.54, 3,999.80 and 1,367.18

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Solution

The fourth proportional to 2,666.54, 3,999.80 and 1,367.18 is: 2,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.54 : 3,999.80 = 1,367.18 : x
  2. Step 2: Convert to fraction form
    2,666.54/3,999.80 = 1,367.18/x
  3. Step 3: Cross multiply
    2,666.54x = 3,999.80 × 1,367.18
  4. Step 4: Simplify right side
    2,666.54x = 5,468,426.57
  5. Step 5: Solve for x
    x = 5,468,426.57/2,666.54
  6. Step 6: Final answer
    x = 2,050.76

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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.