Home / 1,722.30-2,581.58-626.36

Finding the Fourth Proportional to 1,722.30, 2,581.58 and 626.36

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Solution

The fourth proportional to 1,722.30, 2,581.58 and 626.36 is: 938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.30 : 2,581.58 = 626.36 : x
  2. Step 2: Convert to fraction form
    1,722.30/2,581.58 = 626.36/x
  3. Step 3: Cross multiply
    1,722.30x = 2,581.58 × 626.36
  4. Step 4: Simplify right side
    1,722.30x = 1,616,998.45
  5. Step 5: Solve for x
    x = 1,616,998.45/1,722.30
  6. Step 6: Final answer
    x = 938.86

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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.