Home / 3,415.68-5,122.35-1,223.82

Finding the Fourth Proportional to 3,415.68, 5,122.35 and 1,223.82

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Solution

The fourth proportional to 3,415.68, 5,122.35 and 1,223.82 is: 1,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.68 : 5,122.35 = 1,223.82 : x
  2. Step 2: Convert to fraction form
    3,415.68/5,122.35 = 1,223.82/x
  3. Step 3: Cross multiply
    3,415.68x = 5,122.35 × 1,223.82
  4. Step 4: Simplify right side
    3,415.68x = 6,268,834.38
  5. Step 5: Solve for x
    x = 6,268,834.38/3,415.68
  6. Step 6: Final answer
    x = 1,835.31

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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.