Home / 1,236.40-1,697.15-1,093.39

Finding the Fourth Proportional to 1,236.40, 1,697.15 and 1,093.39

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Solution

The fourth proportional to 1,236.40, 1,697.15 and 1,093.39 is: 1,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.40 : 1,697.15 = 1,093.39 : x
  2. Step 2: Convert to fraction form
    1,236.40/1,697.15 = 1,093.39/x
  3. Step 3: Cross multiply
    1,236.40x = 1,697.15 × 1,093.39
  4. Step 4: Simplify right side
    1,236.40x = 1,855,646.84
  5. Step 5: Solve for x
    x = 1,855,646.84/1,236.40
  6. Step 6: Final answer
    x = 1,500.85

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.