Home / 1,295.40-1,942.36-1,141.68

Finding the Fourth Proportional to 1,295.40, 1,942.36 and 1,141.68

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Solution

The fourth proportional to 1,295.40, 1,942.36 and 1,141.68 is: 1,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.40 : 1,942.36 = 1,141.68 : x
  2. Step 2: Convert to fraction form
    1,295.40/1,942.36 = 1,141.68/x
  3. Step 3: Cross multiply
    1,295.40x = 1,942.36 × 1,141.68
  4. Step 4: Simplify right side
    1,295.40x = 2,217,553.56
  5. Step 5: Solve for x
    x = 2,217,553.56/1,295.40
  6. Step 6: Final answer
    x = 1,711.87

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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.