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Finding the Fourth Proportional to 2,285.54, 3,428.30 and 554.17

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Solution

The fourth proportional to 2,285.54, 3,428.30 and 554.17 is: 831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.54 : 3,428.30 = 554.17 : x
  2. Step 2: Convert to fraction form
    2,285.54/3,428.30 = 554.17/x
  3. Step 3: Cross multiply
    2,285.54x = 3,428.30 × 554.17
  4. Step 4: Simplify right side
    2,285.54x = 1,899,853.83
  5. Step 5: Solve for x
    x = 1,899,853.83/2,285.54
  6. Step 6: Final answer
    x = 831.25

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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.