Home / 7,141.28-10,709.37-2,142.14

Finding the Fourth Proportional to 7,141.28, 10,709.37 and 2,142.14

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Solution

The fourth proportional to 7,141.28, 10,709.37 and 2,142.14 is: 3,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.28 : 10,709.37 = 2,142.14 : x
  2. Step 2: Convert to fraction form
    7,141.28/10,709.37 = 2,142.14/x
  3. Step 3: Cross multiply
    7,141.28x = 10,709.37 × 2,142.14
  4. Step 4: Simplify right side
    7,141.28x = 22,940,916.30
  5. Step 5: Solve for x
    x = 22,940,916.30/7,141.28
  6. Step 6: Final answer
    x = 3,212.44

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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.