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Finding the Fourth Proportional to 6,679.84, 9,218.31 and 4,026.68

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Solution

The fourth proportional to 6,679.84, 9,218.31 and 4,026.68 is: 5,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.84 : 9,218.31 = 4,026.68 : x
  2. Step 2: Convert to fraction form
    6,679.84/9,218.31 = 4,026.68/x
  3. Step 3: Cross multiply
    6,679.84x = 9,218.31 × 4,026.68
  4. Step 4: Simplify right side
    6,679.84x = 37,119,184.51
  5. Step 5: Solve for x
    x = 37,119,184.51/6,679.84
  6. Step 6: Final answer
    x = 5,556.90

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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.