Home / 2,110.55-3,165.80-723.87

Finding the Fourth Proportional to 2,110.55, 3,165.80 and 723.87

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Solution

The fourth proportional to 2,110.55, 3,165.80 and 723.87 is: 1,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.55 : 3,165.80 = 723.87 : x
  2. Step 2: Convert to fraction form
    2,110.55/3,165.80 = 723.87/x
  3. Step 3: Cross multiply
    2,110.55x = 3,165.80 × 723.87
  4. Step 4: Simplify right side
    2,110.55x = 2,291,624.03
  5. Step 5: Solve for x
    x = 2,291,624.03/2,110.55
  6. Step 6: Final answer
    x = 1,085.80

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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.