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Finding the Fourth Proportional to 1,748.25, 2,621.30 and 824.00

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Solution

The fourth proportional to 1,748.25, 2,621.30 and 824.00 is: 1,235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.25 : 2,621.30 = 824.00 : x
  2. Step 2: Convert to fraction form
    1,748.25/2,621.30 = 824.00/x
  3. Step 3: Cross multiply
    1,748.25x = 2,621.30 × 824.00
  4. Step 4: Simplify right side
    1,748.25x = 2,159,933.97
  5. Step 5: Solve for x
    x = 2,159,933.97/1,748.25
  6. Step 6: Final answer
    x = 1,235.48

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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.