Home / 5,167.90-7,131.71-2,810.03

Finding the Fourth Proportional to 5,167.90, 7,131.71 and 2,810.03

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Solution

The fourth proportional to 5,167.90, 7,131.71 and 2,810.03 is: 3,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.90 : 7,131.71 = 2,810.03 : x
  2. Step 2: Convert to fraction form
    5,167.90/7,131.71 = 2,810.03/x
  3. Step 3: Cross multiply
    5,167.90x = 7,131.71 × 2,810.03
  4. Step 4: Simplify right side
    5,167.90x = 20,040,319.05
  5. Step 5: Solve for x
    x = 20,040,319.05/5,167.90
  6. Step 6: Final answer
    x = 3,877.85

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1.5x scale

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.