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Finding the Fourth Proportional to 6,889.91, 9,508.13 and 3,746.10

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Solution

The fourth proportional to 6,889.91, 9,508.13 and 3,746.10 is: 5,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.91 : 9,508.13 = 3,746.10 : x
  2. Step 2: Convert to fraction form
    6,889.91/9,508.13 = 3,746.10/x
  3. Step 3: Cross multiply
    6,889.91x = 9,508.13 × 3,746.10
  4. Step 4: Simplify right side
    6,889.91x = 35,618,387.06
  5. Step 5: Solve for x
    x = 35,618,387.06/6,889.91
  6. Step 6: Final answer
    x = 5,169.65

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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.