Home / 2,778.48-4,167.54-1,217.88

Finding the Fourth Proportional to 2,778.48, 4,167.54 and 1,217.88

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Solution

The fourth proportional to 2,778.48, 4,167.54 and 1,217.88 is: 1,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.48 : 4,167.54 = 1,217.88 : x
  2. Step 2: Convert to fraction form
    2,778.48/4,167.54 = 1,217.88/x
  3. Step 3: Cross multiply
    2,778.48x = 4,167.54 × 1,217.88
  4. Step 4: Simplify right side
    2,778.48x = 5,075,563.62
  5. Step 5: Solve for x
    x = 5,075,563.62/2,778.48
  6. Step 6: Final answer
    x = 1,826.74

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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.