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Finding the Fourth Proportional to 6,809.11, 10,214.19 and 1,878.71

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Solution

The fourth proportional to 6,809.11, 10,214.19 and 1,878.71 is: 2,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,809.11 : 10,214.19 = 1,878.71 : x
  2. Step 2: Convert to fraction form
    6,809.11/10,214.19 = 1,878.71/x
  3. Step 3: Cross multiply
    6,809.11x = 10,214.19 × 1,878.71
  4. Step 4: Simplify right side
    6,809.11x = 19,189,449.82
  5. Step 5: Solve for x
    x = 19,189,449.82/6,809.11
  6. Step 6: Final answer
    x = 2,818.20

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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.