Home / 3,246.67-4,489.15-2,831.49

Finding the Fourth Proportional to 3,246.67, 4,489.15 and 2,831.49

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Solution

The fourth proportional to 3,246.67, 4,489.15 and 2,831.49 is: 3,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.67 : 4,489.15 = 2,831.49 : x
  2. Step 2: Convert to fraction form
    3,246.67/4,489.15 = 2,831.49/x
  3. Step 3: Cross multiply
    3,246.67x = 4,489.15 × 2,831.49
  4. Step 4: Simplify right side
    3,246.67x = 12,710,973.60
  5. Step 5: Solve for x
    x = 12,710,973.60/3,246.67
  6. Step 6: Final answer
    x = 3,915.09

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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.