Home / 2,778.10-4,167.60-1,046.86

Finding the Fourth Proportional to 2,778.10, 4,167.60 and 1,046.86

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Solution

The fourth proportional to 2,778.10, 4,167.60 and 1,046.86 is: 1,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.10 : 4,167.60 = 1,046.86 : x
  2. Step 2: Convert to fraction form
    2,778.10/4,167.60 = 1,046.86/x
  3. Step 3: Cross multiply
    2,778.10x = 4,167.60 × 1,046.86
  4. Step 4: Simplify right side
    2,778.10x = 4,362,893.74
  5. Step 5: Solve for x
    x = 4,362,893.74/2,778.10
  6. Step 6: Final answer
    x = 1,570.46

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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.