Home / 5,167.32-7,130.87-2,809.41

Finding the Fourth Proportional to 5,167.32, 7,130.87 and 2,809.41

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Solution

The fourth proportional to 5,167.32, 7,130.87 and 2,809.41 is: 3,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.32 : 7,130.87 = 2,809.41 : x
  2. Step 2: Convert to fraction form
    5,167.32/7,130.87 = 2,809.41/x
  3. Step 3: Cross multiply
    5,167.32x = 7,130.87 × 2,809.41
  4. Step 4: Simplify right side
    5,167.32x = 20,033,487.79
  5. Step 5: Solve for x
    x = 20,033,487.79/5,167.32
  6. Step 6: Final answer
    x = 3,876.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.