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Finding the Fourth Proportional to 1,566.82, 2,162.19 and 868.24

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Solution

The fourth proportional to 1,566.82, 2,162.19 and 868.24 is: 1,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.82 : 2,162.19 = 868.24 : x
  2. Step 2: Convert to fraction form
    1,566.82/2,162.19 = 868.24/x
  3. Step 3: Cross multiply
    1,566.82x = 2,162.19 × 868.24
  4. Step 4: Simplify right side
    1,566.82x = 1,877,299.85
  5. Step 5: Solve for x
    x = 1,877,299.85/1,566.82
  6. Step 6: Final answer
    x = 1,198.16

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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.