Home / 3,426.76-5,140.23-1,086.77

Finding the Fourth Proportional to 3,426.76, 5,140.23 and 1,086.77

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Solution

The fourth proportional to 3,426.76, 5,140.23 and 1,086.77 is: 1,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.76 : 5,140.23 = 1,086.77 : x
  2. Step 2: Convert to fraction form
    3,426.76/5,140.23 = 1,086.77/x
  3. Step 3: Cross multiply
    3,426.76x = 5,140.23 × 1,086.77
  4. Step 4: Simplify right side
    3,426.76x = 5,586,247.76
  5. Step 5: Solve for x
    x = 5,586,247.76/3,426.76
  6. Step 6: Final answer
    x = 1,630.19

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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.