Home / 5,247.72-7,239.51-3,009.15

Finding the Fourth Proportional to 5,247.72, 7,239.51 and 3,009.15

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Solution

The fourth proportional to 5,247.72, 7,239.51 and 3,009.15 is: 4,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.72 : 7,239.51 = 3,009.15 : x
  2. Step 2: Convert to fraction form
    5,247.72/7,239.51 = 3,009.15/x
  3. Step 3: Cross multiply
    5,247.72x = 7,239.51 × 3,009.15
  4. Step 4: Simplify right side
    5,247.72x = 21,784,771.52
  5. Step 5: Solve for x
    x = 21,784,771.52/5,247.72
  6. Step 6: Final answer
    x = 4,151.28

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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.