Home / 5,247.16-7,871.20-1,351.56

Finding the Fourth Proportional to 5,247.16, 7,871.20 and 1,351.56

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Solution

The fourth proportional to 5,247.16, 7,871.20 and 1,351.56 is: 2,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.16 : 7,871.20 = 1,351.56 : x
  2. Step 2: Convert to fraction form
    5,247.16/7,871.20 = 1,351.56/x
  3. Step 3: Cross multiply
    5,247.16x = 7,871.20 × 1,351.56
  4. Step 4: Simplify right side
    5,247.16x = 10,638,399.07
  5. Step 5: Solve for x
    x = 10,638,399.07/5,247.16
  6. Step 6: Final answer
    x = 2,027.46

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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.