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Finding the Fourth Proportional to 1,632.39, 2,449.88 and 852.63

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Solution

The fourth proportional to 1,632.39, 2,449.88 and 852.63 is: 1,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.39 : 2,449.88 = 852.63 : x
  2. Step 2: Convert to fraction form
    1,632.39/2,449.88 = 852.63/x
  3. Step 3: Cross multiply
    1,632.39x = 2,449.88 × 852.63
  4. Step 4: Simplify right side
    1,632.39x = 2,088,830.93
  5. Step 5: Solve for x
    x = 2,088,830.93/1,632.39
  6. Step 6: Final answer
    x = 1,279.62

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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.