Home / 5,242.26-7,867.08-2,122.50

Finding the Fourth Proportional to 5,242.26, 7,867.08 and 2,122.50

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Solution

The fourth proportional to 5,242.26, 7,867.08 and 2,122.50 is: 3,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.26 : 7,867.08 = 2,122.50 : x
  2. Step 2: Convert to fraction form
    5,242.26/7,867.08 = 2,122.50/x
  3. Step 3: Cross multiply
    5,242.26x = 7,867.08 × 2,122.50
  4. Step 4: Simplify right side
    5,242.26x = 16,697,877.30
  5. Step 5: Solve for x
    x = 16,697,877.30/5,242.26
  6. Step 6: Final answer
    x = 3,185.24

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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.