Home / 1,481.32-2,219.58-556.48

Finding the Fourth Proportional to 1,481.32, 2,219.58 and 556.48

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Solution

The fourth proportional to 1,481.32, 2,219.58 and 556.48 is: 833.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.32 : 2,219.58 = 556.48 : x
  2. Step 2: Convert to fraction form
    1,481.32/2,219.58 = 556.48/x
  3. Step 3: Cross multiply
    1,481.32x = 2,219.58 × 556.48
  4. Step 4: Simplify right side
    1,481.32x = 1,235,151.88
  5. Step 5: Solve for x
    x = 1,235,151.88/1,481.32
  6. Step 6: Final answer
    x = 833.82

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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.