Home / 5,289.11-7,933.76-1,778.46

Finding the Fourth Proportional to 5,289.11, 7,933.76 and 1,778.46

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Solution

The fourth proportional to 5,289.11, 7,933.76 and 1,778.46 is: 2,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.11 : 7,933.76 = 1,778.46 : x
  2. Step 2: Convert to fraction form
    5,289.11/7,933.76 = 1,778.46/x
  3. Step 3: Cross multiply
    5,289.11x = 7,933.76 × 1,778.46
  4. Step 4: Simplify right side
    5,289.11x = 14,109,902.34
  5. Step 5: Solve for x
    x = 14,109,902.34/5,289.11
  6. Step 6: Final answer
    x = 2,667.73

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1.5x scale

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.