Home / 3,131.83-4,697.74-2,512.49

Finding the Fourth Proportional to 3,131.83, 4,697.74 and 2,512.49

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Solution

The fourth proportional to 3,131.83, 4,697.74 and 2,512.49 is: 3,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.83 : 4,697.74 = 2,512.49 : x
  2. Step 2: Convert to fraction form
    3,131.83/4,697.74 = 2,512.49/x
  3. Step 3: Cross multiply
    3,131.83x = 4,697.74 × 2,512.49
  4. Step 4: Simplify right side
    3,131.83x = 11,803,004.42
  5. Step 5: Solve for x
    x = 11,803,004.42/3,131.83
  6. Step 6: Final answer
    x = 3,768.72

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Similar ratio
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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.