Home / 1,622.30-2,433.75-756.61

Finding the Fourth Proportional to 1,622.30, 2,433.75 and 756.61

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Solution

The fourth proportional to 1,622.30, 2,433.75 and 756.61 is: 1,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.30 : 2,433.75 = 756.61 : x
  2. Step 2: Convert to fraction form
    1,622.30/2,433.75 = 756.61/x
  3. Step 3: Cross multiply
    1,622.30x = 2,433.75 × 756.61
  4. Step 4: Simplify right side
    1,622.30x = 1,841,398.07
  5. Step 5: Solve for x
    x = 1,841,398.07/1,622.30
  6. Step 6: Final answer
    x = 1,135.06

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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.