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Finding the Fourth Proportional to 2,285.27, 3,428 and 824.03

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Solution

The fourth proportional to 2,285.27, 3,428 and 824.03 is: 1,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.27 : 3,428 = 824.03 : x
  2. Step 2: Convert to fraction form
    2,285.27/3,428 = 824.03/x
  3. Step 3: Cross multiply
    2,285.27x = 3,428 × 824.03
  4. Step 4: Simplify right side
    2,285.27x = 2,824,774.84
  5. Step 5: Solve for x
    x = 2,824,774.84/2,285.27
  6. Step 6: Final answer
    x = 1,236.08

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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.