Home / 6,870.66-10,306.09-2,190.66

Finding the Fourth Proportional to 6,870.66, 10,306.09 and 2,190.66

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Solution

The fourth proportional to 6,870.66, 10,306.09 and 2,190.66 is: 3,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.66 : 10,306.09 = 2,190.66 : x
  2. Step 2: Convert to fraction form
    6,870.66/10,306.09 = 2,190.66/x
  3. Step 3: Cross multiply
    6,870.66x = 10,306.09 × 2,190.66
  4. Step 4: Simplify right side
    6,870.66x = 22,577,148.86
  5. Step 5: Solve for x
    x = 22,577,148.86/6,870.66
  6. Step 6: Final answer
    x = 3,286.03

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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.