Home / 1,229.79-1,844.34-536.30

Finding the Fourth Proportional to 1,229.79, 1,844.34 and 536.30

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Solution

The fourth proportional to 1,229.79, 1,844.34 and 536.30 is: 804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.79 : 1,844.34 = 536.30 : x
  2. Step 2: Convert to fraction form
    1,229.79/1,844.34 = 536.30/x
  3. Step 3: Cross multiply
    1,229.79x = 1,844.34 × 536.30
  4. Step 4: Simplify right side
    1,229.79x = 989,118.70
  5. Step 5: Solve for x
    x = 989,118.70/1,229.79
  6. Step 6: Final answer
    x = 804.30

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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.