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Finding the Fourth Proportional to 1,776.18, 2,664.51 and 852.19

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Solution

The fourth proportional to 1,776.18, 2,664.51 and 852.19 is: 1,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.18 : 2,664.51 = 852.19 : x
  2. Step 2: Convert to fraction form
    1,776.18/2,664.51 = 852.19/x
  3. Step 3: Cross multiply
    1,776.18x = 2,664.51 × 852.19
  4. Step 4: Simplify right side
    1,776.18x = 2,270,668.78
  5. Step 5: Solve for x
    x = 2,270,668.78/1,776.18
  6. Step 6: Final answer
    x = 1,278.40

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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.