Home / 1,350.72-2,025.36-699.84

Finding the Fourth Proportional to 1,350.72, 2,025.36 and 699.84

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Solution

The fourth proportional to 1,350.72, 2,025.36 and 699.84 is: 1,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.72 : 2,025.36 = 699.84 : x
  2. Step 2: Convert to fraction form
    1,350.72/2,025.36 = 699.84/x
  3. Step 3: Cross multiply
    1,350.72x = 2,025.36 × 699.84
  4. Step 4: Simplify right side
    1,350.72x = 1,417,427.94
  5. Step 5: Solve for x
    x = 1,417,427.94/1,350.72
  6. Step 6: Final answer
    x = 1,049.39

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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.