Home / 1,622.31-2,239.34-1,125.62

Finding the Fourth Proportional to 1,622.31, 2,239.34 and 1,125.62

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Solution

The fourth proportional to 1,622.31, 2,239.34 and 1,125.62 is: 1,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.31 : 2,239.34 = 1,125.62 : x
  2. Step 2: Convert to fraction form
    1,622.31/2,239.34 = 1,125.62/x
  3. Step 3: Cross multiply
    1,622.31x = 2,239.34 × 1,125.62
  4. Step 4: Simplify right side
    1,622.31x = 2,520,629.07
  5. Step 5: Solve for x
    x = 2,520,629.07/1,622.31
  6. Step 6: Final answer
    x = 1,553.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.