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Finding the Fourth Proportional to 5,508.70, 7,601.97 and 2,990.79

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Solution

The fourth proportional to 5,508.70, 7,601.97 and 2,990.79 is: 4,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508.70 : 7,601.97 = 2,990.79 : x
  2. Step 2: Convert to fraction form
    5,508.70/7,601.97 = 2,990.79/x
  3. Step 3: Cross multiply
    5,508.70x = 7,601.97 × 2,990.79
  4. Step 4: Simplify right side
    5,508.70x = 22,735,907.07
  5. Step 5: Solve for x
    x = 22,735,907.07/5,508.70
  6. Step 6: Final answer
    x = 4,127.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.