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Finding the Fourth Proportional to 2,285.56, 3,428.33 and 554.18

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Solution

The fourth proportional to 2,285.56, 3,428.33 and 554.18 is: 831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.56 : 3,428.33 = 554.18 : x
  2. Step 2: Convert to fraction form
    2,285.56/3,428.33 = 554.18/x
  3. Step 3: Cross multiply
    2,285.56x = 3,428.33 × 554.18
  4. Step 4: Simplify right side
    2,285.56x = 1,899,915.45
  5. Step 5: Solve for x
    x = 1,899,915.45/2,285.56
  6. Step 6: Final answer
    x = 831.27

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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.