Home / 2,175.07-3,261.53-694.10

Finding the Fourth Proportional to 2,175.07, 3,261.53 and 694.10

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Solution

The fourth proportional to 2,175.07, 3,261.53 and 694.10 is: 1,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.07 : 3,261.53 = 694.10 : x
  2. Step 2: Convert to fraction form
    2,175.07/3,261.53 = 694.10/x
  3. Step 3: Cross multiply
    2,175.07x = 3,261.53 × 694.10
  4. Step 4: Simplify right side
    2,175.07x = 2,263,834.93
  5. Step 5: Solve for x
    x = 2,263,834.93/2,175.07
  6. Step 6: Final answer
    x = 1,040.81

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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.