Home / 1,722.32-2,581.91-626.43

Finding the Fourth Proportional to 1,722.32, 2,581.91 and 626.43

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Solution

The fourth proportional to 1,722.32, 2,581.91 and 626.43 is: 939.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.32 : 2,581.91 = 626.43 : x
  2. Step 2: Convert to fraction form
    1,722.32/2,581.91 = 626.43/x
  3. Step 3: Cross multiply
    1,722.32x = 2,581.91 × 626.43
  4. Step 4: Simplify right side
    1,722.32x = 1,617,381.08
  5. Step 5: Solve for x
    x = 1,617,381.08/1,722.32
  6. Step 6: Final answer
    x = 939.07

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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.