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Finding the Fourth Proportional to 4,985.96, 6,880.90 and 2,998.22

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Solution

The fourth proportional to 4,985.96, 6,880.90 and 2,998.22 is: 4,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.96 : 6,880.90 = 2,998.22 : x
  2. Step 2: Convert to fraction form
    4,985.96/6,880.90 = 2,998.22/x
  3. Step 3: Cross multiply
    4,985.96x = 6,880.90 × 2,998.22
  4. Step 4: Simplify right side
    4,985.96x = 20,630,452.00
  5. Step 5: Solve for x
    x = 20,630,452.00/4,985.96
  6. Step 6: Final answer
    x = 4,137.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.