Home / 2,778.21-4,167.25-1,134.36

Finding the Fourth Proportional to 2,778.21, 4,167.25 and 1,134.36

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Solution

The fourth proportional to 2,778.21, 4,167.25 and 1,134.36 is: 1,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.21 : 4,167.25 = 1,134.36 : x
  2. Step 2: Convert to fraction form
    2,778.21/4,167.25 = 1,134.36/x
  3. Step 3: Cross multiply
    2,778.21x = 4,167.25 × 1,134.36
  4. Step 4: Simplify right side
    2,778.21x = 4,727,161.71
  5. Step 5: Solve for x
    x = 4,727,161.71/2,778.21
  6. Step 6: Final answer
    x = 1,701.51

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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.