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Finding the Fourth Proportional to 6,618.26, 9,929.82 and 2,722.97

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Solution

The fourth proportional to 6,618.26, 9,929.82 and 2,722.97 is: 4,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.26 : 9,929.82 = 2,722.97 : x
  2. Step 2: Convert to fraction form
    6,618.26/9,929.82 = 2,722.97/x
  3. Step 3: Cross multiply
    6,618.26x = 9,929.82 × 2,722.97
  4. Step 4: Simplify right side
    6,618.26x = 27,038,552.32
  5. Step 5: Solve for x
    x = 27,038,552.32/6,618.26
  6. Step 6: Final answer
    x = 4,085.45

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1.5x scale

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.