Home / 1,281.14-1,922.01-550.77

Finding the Fourth Proportional to 1,281.14, 1,922.01 and 550.77

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Solution

The fourth proportional to 1,281.14, 1,922.01 and 550.77 is: 826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.14 : 1,922.01 = 550.77 : x
  2. Step 2: Convert to fraction form
    1,281.14/1,922.01 = 550.77/x
  3. Step 3: Cross multiply
    1,281.14x = 1,922.01 × 550.77
  4. Step 4: Simplify right side
    1,281.14x = 1,058,582.69
  5. Step 5: Solve for x
    x = 1,058,582.69/1,281.14
  6. Step 6: Final answer
    x = 826.29

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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.