Home / 2,145.48-3,213.23-2,086.37

Finding the Fourth Proportional to 2,145.48, 3,213.23 and 2,086.37

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Solution

The fourth proportional to 2,145.48, 3,213.23 and 2,086.37 is: 3,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.48 : 3,213.23 = 2,086.37 : x
  2. Step 2: Convert to fraction form
    2,145.48/3,213.23 = 2,086.37/x
  3. Step 3: Cross multiply
    2,145.48x = 3,213.23 × 2,086.37
  4. Step 4: Simplify right side
    2,145.48x = 6,703,960.18
  5. Step 5: Solve for x
    x = 6,703,960.18/2,145.48
  6. Step 6: Final answer
    x = 3,124.69

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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.