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Finding the Fourth Proportional to 1,702.98, 2,554.50 and 548.73

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Solution

The fourth proportional to 1,702.98, 2,554.50 and 548.73 is: 823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.98 : 2,554.50 = 548.73 : x
  2. Step 2: Convert to fraction form
    1,702.98/2,554.50 = 548.73/x
  3. Step 3: Cross multiply
    1,702.98x = 2,554.50 × 548.73
  4. Step 4: Simplify right side
    1,702.98x = 1,401,730.79
  5. Step 5: Solve for x
    x = 1,401,730.79/1,702.98
  6. Step 6: Final answer
    x = 823.10

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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.