Home / 3,778.52-5,667.78-1,005.19

Finding the Fourth Proportional to 3,778.52, 5,667.78 and 1,005.19

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Solution

The fourth proportional to 3,778.52, 5,667.78 and 1,005.19 is: 1,507.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.52 : 5,667.78 = 1,005.19 : x
  2. Step 2: Convert to fraction form
    3,778.52/5,667.78 = 1,005.19/x
  3. Step 3: Cross multiply
    3,778.52x = 5,667.78 × 1,005.19
  4. Step 4: Simplify right side
    3,778.52x = 5,697,215.03
  5. Step 5: Solve for x
    x = 5,697,215.03/3,778.52
  6. Step 6: Final answer
    x = 1,507.79

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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.