Home / 6,869.85-10,305.35-2,190.53

Finding the Fourth Proportional to 6,869.85, 10,305.35 and 2,190.53

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Solution

The fourth proportional to 6,869.85, 10,305.35 and 2,190.53 is: 3,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.85 : 10,305.35 = 2,190.53 : x
  2. Step 2: Convert to fraction form
    6,869.85/10,305.35 = 2,190.53/x
  3. Step 3: Cross multiply
    6,869.85x = 10,305.35 × 2,190.53
  4. Step 4: Simplify right side
    6,869.85x = 22,574,132.29
  5. Step 5: Solve for x
    x = 22,574,132.29/6,869.85
  6. Step 6: Final answer
    x = 3,285.97

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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.