Home / 6,869.86-10,307.72-2,190.24

Finding the Fourth Proportional to 6,869.86, 10,307.72 and 2,190.24

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Solution

The fourth proportional to 6,869.86, 10,307.72 and 2,190.24 is: 3,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.86 : 10,307.72 = 2,190.24 : x
  2. Step 2: Convert to fraction form
    6,869.86/10,307.72 = 2,190.24/x
  3. Step 3: Cross multiply
    6,869.86x = 10,307.72 × 2,190.24
  4. Step 4: Simplify right side
    6,869.86x = 22,576,380.65
  5. Step 5: Solve for x
    x = 22,576,380.65/6,869.86
  6. Step 6: Final answer
    x = 3,286.29

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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.