Home / 5,261.18-7,894.49-2,143.49

Finding the Fourth Proportional to 5,261.18, 7,894.49 and 2,143.49

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Solution

The fourth proportional to 5,261.18, 7,894.49 and 2,143.49 is: 3,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.18 : 7,894.49 = 2,143.49 : x
  2. Step 2: Convert to fraction form
    5,261.18/7,894.49 = 2,143.49/x
  3. Step 3: Cross multiply
    5,261.18x = 7,894.49 × 2,143.49
  4. Step 4: Simplify right side
    5,261.18x = 16,921,710.18
  5. Step 5: Solve for x
    x = 16,921,710.18/5,261.18
  6. Step 6: Final answer
    x = 3,216.34

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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.