Home / 1,722.11-2,583.14-423.59

Finding the Fourth Proportional to 1,722.11, 2,583.14 and 423.59

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Solution

The fourth proportional to 1,722.11, 2,583.14 and 423.59 is: 635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.11 : 2,583.14 = 423.59 : x
  2. Step 2: Convert to fraction form
    1,722.11/2,583.14 = 423.59/x
  3. Step 3: Cross multiply
    1,722.11x = 2,583.14 × 423.59
  4. Step 4: Simplify right side
    1,722.11x = 1,094,177.24
  5. Step 5: Solve for x
    x = 1,094,177.24/1,722.11
  6. Step 6: Final answer
    x = 635.37

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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.