Home / 2,110.15-3,165.53-723.84

Finding the Fourth Proportional to 2,110.15, 3,165.53 and 723.84

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Solution

The fourth proportional to 2,110.15, 3,165.53 and 723.84 is: 1,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.15 : 3,165.53 = 723.84 : x
  2. Step 2: Convert to fraction form
    2,110.15/3,165.53 = 723.84/x
  3. Step 3: Cross multiply
    2,110.15x = 3,165.53 × 723.84
  4. Step 4: Simplify right side
    2,110.15x = 2,291,325.82
  5. Step 5: Solve for x
    x = 2,291,325.82/2,110.15
  6. Step 6: Final answer
    x = 1,085.86

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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.