Home / 3,869.17-5,334.46-2,808.47

Finding the Fourth Proportional to 3,869.17, 5,334.46 and 2,808.47

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Solution

The fourth proportional to 3,869.17, 5,334.46 and 2,808.47 is: 3,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.17 : 5,334.46 = 2,808.47 : x
  2. Step 2: Convert to fraction form
    3,869.17/5,334.46 = 2,808.47/x
  3. Step 3: Cross multiply
    3,869.17x = 5,334.46 × 2,808.47
  4. Step 4: Simplify right side
    3,869.17x = 14,981,677.19
  5. Step 5: Solve for x
    x = 14,981,677.19/3,869.17
  6. Step 6: Final answer
    x = 3,872.07

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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.