Home / 2,850.90-4,276.77-1,291.44

Finding the Fourth Proportional to 2,850.90, 4,276.77 and 1,291.44

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Solution

The fourth proportional to 2,850.90, 4,276.77 and 1,291.44 is: 1,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.90 : 4,276.77 = 1,291.44 : x
  2. Step 2: Convert to fraction form
    2,850.90/4,276.77 = 1,291.44/x
  3. Step 3: Cross multiply
    2,850.90x = 4,276.77 × 1,291.44
  4. Step 4: Simplify right side
    2,850.90x = 5,523,191.85
  5. Step 5: Solve for x
    x = 5,523,191.85/2,850.90
  6. Step 6: Final answer
    x = 1,937.35

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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.