Home / 6,871.93-10,308.71-2,190.31

Finding the Fourth Proportional to 6,871.93, 10,308.71 and 2,190.31

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Solution

The fourth proportional to 6,871.93, 10,308.71 and 2,190.31 is: 3,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.93 : 10,308.71 = 2,190.31 : x
  2. Step 2: Convert to fraction form
    6,871.93/10,308.71 = 2,190.31/x
  3. Step 3: Cross multiply
    6,871.93x = 10,308.71 × 2,190.31
  4. Step 4: Simplify right side
    6,871.93x = 22,579,270.60
  5. Step 5: Solve for x
    x = 22,579,270.60/6,871.93
  6. Step 6: Final answer
    x = 3,285.72

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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.