Home / 3,239.85-4,831.88-3,181.53

Finding the Fourth Proportional to 3,239.85, 4,831.88 and 3,181.53

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Solution

The fourth proportional to 3,239.85, 4,831.88 and 3,181.53 is: 4,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.85 : 4,831.88 = 3,181.53 : x
  2. Step 2: Convert to fraction form
    3,239.85/4,831.88 = 3,181.53/x
  3. Step 3: Cross multiply
    3,239.85x = 4,831.88 × 3,181.53
  4. Step 4: Simplify right side
    3,239.85x = 15,372,791.28
  5. Step 5: Solve for x
    x = 15,372,791.28/3,239.85
  6. Step 6: Final answer
    x = 4,744.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.