Home / 1,437.31-2,155.24-512.73

Finding the Fourth Proportional to 1,437.31, 2,155.24 and 512.73

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Solution

The fourth proportional to 1,437.31, 2,155.24 and 512.73 is: 768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.31 : 2,155.24 = 512.73 : x
  2. Step 2: Convert to fraction form
    1,437.31/2,155.24 = 512.73/x
  3. Step 3: Cross multiply
    1,437.31x = 2,155.24 × 512.73
  4. Step 4: Simplify right side
    1,437.31x = 1,105,056.85
  5. Step 5: Solve for x
    x = 1,105,056.85/1,437.31
  6. Step 6: Final answer
    x = 768.84

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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.