Home / 4,912.38-7,368.57-2,831.05

Finding the Fourth Proportional to 4,912.38, 7,368.57 and 2,831.05

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Solution

The fourth proportional to 4,912.38, 7,368.57 and 2,831.05 is: 4,246.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.38 : 7,368.57 = 2,831.05 : x
  2. Step 2: Convert to fraction form
    4,912.38/7,368.57 = 2,831.05/x
  3. Step 3: Cross multiply
    4,912.38x = 7,368.57 × 2,831.05
  4. Step 4: Simplify right side
    4,912.38x = 20,860,813.67
  5. Step 5: Solve for x
    x = 20,860,813.67/4,912.38
  6. Step 6: Final answer
    x = 4,246.58

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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.