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Finding the Fourth Proportional to 1,244.88, 1,718.64 and 852.48

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Solution

The fourth proportional to 1,244.88, 1,718.64 and 852.48 is: 1,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.88 : 1,718.64 = 852.48 : x
  2. Step 2: Convert to fraction form
    1,244.88/1,718.64 = 852.48/x
  3. Step 3: Cross multiply
    1,244.88x = 1,718.64 × 852.48
  4. Step 4: Simplify right side
    1,244.88x = 1,465,106.23
  5. Step 5: Solve for x
    x = 1,465,106.23/1,244.88
  6. Step 6: Final answer
    x = 1,176.91

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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.