Home / 1,778.15-2,667.13-1,294.18

Finding the Fourth Proportional to 1,778.15, 2,667.13 and 1,294.18

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Solution

The fourth proportional to 1,778.15, 2,667.13 and 1,294.18 is: 1,941.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.15 : 2,667.13 = 1,294.18 : x
  2. Step 2: Convert to fraction form
    1,778.15/2,667.13 = 1,294.18/x
  3. Step 3: Cross multiply
    1,778.15x = 2,667.13 × 1,294.18
  4. Step 4: Simplify right side
    1,778.15x = 3,451,736.40
  5. Step 5: Solve for x
    x = 3,451,736.40/1,778.15
  6. Step 6: Final answer
    x = 1,941.19

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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.