Home / 3,131.91-4,319.96-2,014.27

Finding the Fourth Proportional to 3,131.91, 4,319.96 and 2,014.27

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Solution

The fourth proportional to 3,131.91, 4,319.96 and 2,014.27 is: 2,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.91 : 4,319.96 = 2,014.27 : x
  2. Step 2: Convert to fraction form
    3,131.91/4,319.96 = 2,014.27/x
  3. Step 3: Cross multiply
    3,131.91x = 4,319.96 × 2,014.27
  4. Step 4: Simplify right side
    3,131.91x = 8,701,549.27
  5. Step 5: Solve for x
    x = 8,701,549.27/3,131.91
  6. Step 6: Final answer
    x = 2,778.35

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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.