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Finding the Fourth Proportional to 6,990.97, 10,488.29 and 2,608.47

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Solution

The fourth proportional to 6,990.97, 10,488.29 and 2,608.47 is: 3,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.97 : 10,488.29 = 2,608.47 : x
  2. Step 2: Convert to fraction form
    6,990.97/10,488.29 = 2,608.47/x
  3. Step 3: Cross multiply
    6,990.97x = 10,488.29 × 2,608.47
  4. Step 4: Simplify right side
    6,990.97x = 27,358,389.82
  5. Step 5: Solve for x
    x = 27,358,389.82/6,990.97
  6. Step 6: Final answer
    x = 3,913.39

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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.