Home / 3,426.98-5,140.66-1,087.17

Finding the Fourth Proportional to 3,426.98, 5,140.66 and 1,087.17

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Solution

The fourth proportional to 3,426.98, 5,140.66 and 1,087.17 is: 1,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.98 : 5,140.66 = 1,087.17 : x
  2. Step 2: Convert to fraction form
    3,426.98/5,140.66 = 1,087.17/x
  3. Step 3: Cross multiply
    3,426.98x = 5,140.66 × 1,087.17
  4. Step 4: Simplify right side
    3,426.98x = 5,588,747.00
  5. Step 5: Solve for x
    x = 5,588,747.00/3,426.98
  6. Step 6: Final answer
    x = 1,630.81

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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.