Home / 2,778.29-4,172.21-2,466.64

Finding the Fourth Proportional to 2,778.29, 4,172.21 and 2,466.64

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Solution

The fourth proportional to 2,778.29, 4,172.21 and 2,466.64 is: 3,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.29 : 4,172.21 = 2,466.64 : x
  2. Step 2: Convert to fraction form
    2,778.29/4,172.21 = 2,466.64/x
  3. Step 3: Cross multiply
    2,778.29x = 4,172.21 × 2,466.64
  4. Step 4: Simplify right side
    2,778.29x = 10,291,319.21
  5. Step 5: Solve for x
    x = 10,291,319.21/2,778.29
  6. Step 6: Final answer
    x = 3,704.20

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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.