Home / 1,793.40-2,685.78-1,214.52

Finding the Fourth Proportional to 1,793.40, 2,685.78 and 1,214.52

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Solution

The fourth proportional to 1,793.40, 2,685.78 and 1,214.52 is: 1,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793.40 : 2,685.78 = 1,214.52 : x
  2. Step 2: Convert to fraction form
    1,793.40/2,685.78 = 1,214.52/x
  3. Step 3: Cross multiply
    1,793.40x = 2,685.78 × 1,214.52
  4. Step 4: Simplify right side
    1,793.40x = 3,261,933.53
  5. Step 5: Solve for x
    x = 3,261,933.53/1,793.40
  6. Step 6: Final answer
    x = 1,818.85

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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.