Home / 1,622.57-2,237.63-1,292.09

Finding the Fourth Proportional to 1,622.57, 2,237.63 and 1,292.09

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Solution

The fourth proportional to 1,622.57, 2,237.63 and 1,292.09 is: 1,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.57 : 2,237.63 = 1,292.09 : x
  2. Step 2: Convert to fraction form
    1,622.57/2,237.63 = 1,292.09/x
  3. Step 3: Cross multiply
    1,622.57x = 2,237.63 × 1,292.09
  4. Step 4: Simplify right side
    1,622.57x = 2,891,201.70
  5. Step 5: Solve for x
    x = 2,891,201.70/1,622.57
  6. Step 6: Final answer
    x = 1,781.87

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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.