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Finding the Fourth Proportional to 6,488.88, 8,954.66 and 3,694.38

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Solution

The fourth proportional to 6,488.88, 8,954.66 and 3,694.38 is: 5,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.88 : 8,954.66 = 3,694.38 : x
  2. Step 2: Convert to fraction form
    6,488.88/8,954.66 = 3,694.38/x
  3. Step 3: Cross multiply
    6,488.88x = 8,954.66 × 3,694.38
  4. Step 4: Simplify right side
    6,488.88x = 33,081,916.81
  5. Step 5: Solve for x
    x = 33,081,916.81/6,488.88
  6. Step 6: Final answer
    x = 5,098.25

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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.