Home / 7,430.49-11,147.67-2,165.38

Finding the Fourth Proportional to 7,430.49, 11,147.67 and 2,165.38

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Solution

The fourth proportional to 7,430.49, 11,147.67 and 2,165.38 is: 3,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.49 : 11,147.67 = 2,165.38 : x
  2. Step 2: Convert to fraction form
    7,430.49/11,147.67 = 2,165.38/x
  3. Step 3: Cross multiply
    7,430.49x = 11,147.67 × 2,165.38
  4. Step 4: Simplify right side
    7,430.49x = 24,138,941.66
  5. Step 5: Solve for x
    x = 24,138,941.66/7,430.49
  6. Step 6: Final answer
    x = 3,248.63

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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.