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Finding the Fourth Proportional to 1,252.80, 1,882.80 and 1,094.40

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Solution

The fourth proportional to 1,252.80, 1,882.80 and 1,094.40 is: 1,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.80 : 1,882.80 = 1,094.40 : x
  2. Step 2: Convert to fraction form
    1,252.80/1,882.80 = 1,094.40/x
  3. Step 3: Cross multiply
    1,252.80x = 1,882.80 × 1,094.40
  4. Step 4: Simplify right side
    1,252.80x = 2,060,536.32
  5. Step 5: Solve for x
    x = 2,060,536.32/1,252.80
  6. Step 6: Final answer
    x = 1,644.74

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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.