Home / 7,189.29-9,921.26-4,002.50

Finding the Fourth Proportional to 7,189.29, 9,921.26 and 4,002.50

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Solution

The fourth proportional to 7,189.29, 9,921.26 and 4,002.50 is: 5,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.29 : 9,921.26 = 4,002.50 : x
  2. Step 2: Convert to fraction form
    7,189.29/9,921.26 = 4,002.50/x
  3. Step 3: Cross multiply
    7,189.29x = 9,921.26 × 4,002.50
  4. Step 4: Simplify right side
    7,189.29x = 39,709,773.53
  5. Step 5: Solve for x
    x = 39,709,773.53/7,189.29
  6. Step 6: Final answer
    x = 5,523.46

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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.