Home / 3,778.31-5,667.51-1,313.18

Finding the Fourth Proportional to 3,778.31, 5,667.51 and 1,313.18

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Solution

The fourth proportional to 3,778.31, 5,667.51 and 1,313.18 is: 1,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.31 : 5,667.51 = 1,313.18 : x
  2. Step 2: Convert to fraction form
    3,778.31/5,667.51 = 1,313.18/x
  3. Step 3: Cross multiply
    3,778.31x = 5,667.51 × 1,313.18
  4. Step 4: Simplify right side
    3,778.31x = 7,442,432.44
  5. Step 5: Solve for x
    x = 7,442,432.44/3,778.31
  6. Step 6: Final answer
    x = 1,969.78

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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.