Home / 1,444.20-2,166.84-519.72

Finding the Fourth Proportional to 1,444.20, 2,166.84 and 519.72

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Solution

The fourth proportional to 1,444.20, 2,166.84 and 519.72 is: 779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.20 : 2,166.84 = 519.72 : x
  2. Step 2: Convert to fraction form
    1,444.20/2,166.84 = 519.72/x
  3. Step 3: Cross multiply
    1,444.20x = 2,166.84 × 519.72
  4. Step 4: Simplify right side
    1,444.20x = 1,126,150.08
  5. Step 5: Solve for x
    x = 1,126,150.08/1,444.20
  6. Step 6: Final answer
    x = 779.77

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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.