Home / 1,451.41-2,177.11-355.76

Finding the Fourth Proportional to 1,451.41, 2,177.11 and 355.76

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Solution

The fourth proportional to 1,451.41, 2,177.11 and 355.76 is: 533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.41 : 2,177.11 = 355.76 : x
  2. Step 2: Convert to fraction form
    1,451.41/2,177.11 = 355.76/x
  3. Step 3: Cross multiply
    1,451.41x = 2,177.11 × 355.76
  4. Step 4: Simplify right side
    1,451.41x = 774,539.62
  5. Step 5: Solve for x
    x = 774,539.62/1,451.41
  6. Step 6: Final answer
    x = 533.65

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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.