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Finding the Fourth Proportional to 1,252.51, 1,876.64 and 885.50

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Solution

The fourth proportional to 1,252.51, 1,876.64 and 885.50 is: 1,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.51 : 1,876.64 = 885.50 : x
  2. Step 2: Convert to fraction form
    1,252.51/1,876.64 = 885.50/x
  3. Step 3: Cross multiply
    1,252.51x = 1,876.64 × 885.50
  4. Step 4: Simplify right side
    1,252.51x = 1,661,760.29
  5. Step 5: Solve for x
    x = 1,661,760.29/1,252.51
  6. Step 6: Final answer
    x = 1,326.75

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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.