Home / 5,177.48-7,767.50-1,667.78

Finding the Fourth Proportional to 5,177.48, 7,767.50 and 1,667.78

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Solution

The fourth proportional to 5,177.48, 7,767.50 and 1,667.78 is: 2,502.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.48 : 7,767.50 = 1,667.78 : x
  2. Step 2: Convert to fraction form
    5,177.48/7,767.50 = 1,667.78/x
  3. Step 3: Cross multiply
    5,177.48x = 7,767.50 × 1,667.78
  4. Step 4: Simplify right side
    5,177.48x = 12,954,481.15
  5. Step 5: Solve for x
    x = 12,954,481.15/5,177.48
  6. Step 6: Final answer
    x = 2,502.08

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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.