Home / 6,871.20-10,306.96-2,194.40

Finding the Fourth Proportional to 6,871.20, 10,306.96 and 2,194.40

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Solution

The fourth proportional to 6,871.20, 10,306.96 and 2,194.40 is: 3,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.20 : 10,306.96 = 2,194.40 : x
  2. Step 2: Convert to fraction form
    6,871.20/10,306.96 = 2,194.40/x
  3. Step 3: Cross multiply
    6,871.20x = 10,306.96 × 2,194.40
  4. Step 4: Simplify right side
    6,871.20x = 22,617,593.02
  5. Step 5: Solve for x
    x = 22,617,593.02/6,871.20
  6. Step 6: Final answer
    x = 3,291.65

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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.