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Finding the Fourth Proportional to 1,864.60, 2,797.24 and 824.60

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Solution

The fourth proportional to 1,864.60, 2,797.24 and 824.60 is: 1,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.60 : 2,797.24 = 824.60 : x
  2. Step 2: Convert to fraction form
    1,864.60/2,797.24 = 824.60/x
  3. Step 3: Cross multiply
    1,864.60x = 2,797.24 × 824.60
  4. Step 4: Simplify right side
    1,864.60x = 2,306,604.10
  5. Step 5: Solve for x
    x = 2,306,604.10/1,864.60
  6. Step 6: Final answer
    x = 1,237.05

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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.