Home / 1,044.10-1,566.38-427.81

Finding the Fourth Proportional to 1,044.10, 1,566.38 and 427.81

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Solution

The fourth proportional to 1,044.10, 1,566.38 and 427.81 is: 641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.10 : 1,566.38 = 427.81 : x
  2. Step 2: Convert to fraction form
    1,044.10/1,566.38 = 427.81/x
  3. Step 3: Cross multiply
    1,044.10x = 1,566.38 × 427.81
  4. Step 4: Simplify right side
    1,044.10x = 670,105.70
  5. Step 5: Solve for x
    x = 670,105.70/1,044.10
  6. Step 6: Final answer
    x = 641.80

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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.