Home / 5,265.15-7,900.47-2,147.46

Finding the Fourth Proportional to 5,265.15, 7,900.47 and 2,147.46

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Solution

The fourth proportional to 5,265.15, 7,900.47 and 2,147.46 is: 3,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265.15 : 7,900.47 = 2,147.46 : x
  2. Step 2: Convert to fraction form
    5,265.15/7,900.47 = 2,147.46/x
  3. Step 3: Cross multiply
    5,265.15x = 7,900.47 × 2,147.46
  4. Step 4: Simplify right side
    5,265.15x = 16,965,943.31
  5. Step 5: Solve for x
    x = 16,965,943.31/5,265.15
  6. Step 6: Final answer
    x = 3,222.31

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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.