Home / 5,428.71-8,144.28-2,311.37

Finding the Fourth Proportional to 5,428.71, 8,144.28 and 2,311.37

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Solution

The fourth proportional to 5,428.71, 8,144.28 and 2,311.37 is: 3,467.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.71 : 8,144.28 = 2,311.37 : x
  2. Step 2: Convert to fraction form
    5,428.71/8,144.28 = 2,311.37/x
  3. Step 3: Cross multiply
    5,428.71x = 8,144.28 × 2,311.37
  4. Step 4: Simplify right side
    5,428.71x = 18,824,444.46
  5. Step 5: Solve for x
    x = 18,824,444.46/5,428.71
  6. Step 6: Final answer
    x = 3,467.57

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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.