Home / 1,793.22-2,472.84-1,289.40

Finding the Fourth Proportional to 1,793.22, 2,472.84 and 1,289.40

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Solution

The fourth proportional to 1,793.22, 2,472.84 and 1,289.40 is: 1,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793.22 : 2,472.84 = 1,289.40 : x
  2. Step 2: Convert to fraction form
    1,793.22/2,472.84 = 1,289.40/x
  3. Step 3: Cross multiply
    1,793.22x = 2,472.84 × 1,289.40
  4. Step 4: Simplify right side
    1,793.22x = 3,188,479.90
  5. Step 5: Solve for x
    x = 3,188,479.90/1,793.22
  6. Step 6: Final answer
    x = 1,778.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.