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Finding the Fourth Proportional to 5,247.41, 7,240.65 and 3,009.38

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Solution

The fourth proportional to 5,247.41, 7,240.65 and 3,009.38 is: 4,152.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.41 : 7,240.65 = 3,009.38 : x
  2. Step 2: Convert to fraction form
    5,247.41/7,240.65 = 3,009.38/x
  3. Step 3: Cross multiply
    5,247.41x = 7,240.65 × 3,009.38
  4. Step 4: Simplify right side
    5,247.41x = 21,789,831.09
  5. Step 5: Solve for x
    x = 21,789,831.09/5,247.41
  6. Step 6: Final answer
    x = 4,152.50

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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.