Home / 6,869.28-10,304.64-2,189.64

Finding the Fourth Proportional to 6,869.28, 10,304.64 and 2,189.64

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Solution

The fourth proportional to 6,869.28, 10,304.64 and 2,189.64 is: 3,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.28 : 10,304.64 = 2,189.64 : x
  2. Step 2: Convert to fraction form
    6,869.28/10,304.64 = 2,189.64/x
  3. Step 3: Cross multiply
    6,869.28x = 10,304.64 × 2,189.64
  4. Step 4: Simplify right side
    6,869.28x = 22,563,451.93
  5. Step 5: Solve for x
    x = 22,563,451.93/6,869.28
  6. Step 6: Final answer
    x = 3,284.69

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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.