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Finding the Fourth Proportional to 6,673.70, 9,210.04 and 3,689.66

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Solution

The fourth proportional to 6,673.70, 9,210.04 and 3,689.66 is: 5,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,673.70 : 9,210.04 = 3,689.66 : x
  2. Step 2: Convert to fraction form
    6,673.70/9,210.04 = 3,689.66/x
  3. Step 3: Cross multiply
    6,673.70x = 9,210.04 × 3,689.66
  4. Step 4: Simplify right side
    6,673.70x = 33,981,860.91
  5. Step 5: Solve for x
    x = 33,981,860.91/6,673.70
  6. Step 6: Final answer
    x = 5,091.91

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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.