Home / 3,217.05-4,831.02-2,123.55

Finding the Fourth Proportional to 3,217.05, 4,831.02 and 2,123.55

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Solution

The fourth proportional to 3,217.05, 4,831.02 and 2,123.55 is: 3,188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.05 : 4,831.02 = 2,123.55 : x
  2. Step 2: Convert to fraction form
    3,217.05/4,831.02 = 2,123.55/x
  3. Step 3: Cross multiply
    3,217.05x = 4,831.02 × 2,123.55
  4. Step 4: Simplify right side
    3,217.05x = 10,258,912.52
  5. Step 5: Solve for x
    x = 10,258,912.52/3,217.05
  6. Step 6: Final answer
    x = 3,188.92

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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.