Home / 1,282.02-1,921.14-550.86

Finding the Fourth Proportional to 1,282.02, 1,921.14 and 550.86

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Solution

The fourth proportional to 1,282.02, 1,921.14 and 550.86 is: 825.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.02 : 1,921.14 = 550.86 : x
  2. Step 2: Convert to fraction form
    1,282.02/1,921.14 = 550.86/x
  3. Step 3: Cross multiply
    1,282.02x = 1,921.14 × 550.86
  4. Step 4: Simplify right side
    1,282.02x = 1,058,279.18
  5. Step 5: Solve for x
    x = 1,058,279.18/1,282.02
  6. Step 6: Final answer
    x = 825.48

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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.