Home / 7,261.80-10,893.51-2,643.72

Finding the Fourth Proportional to 7,261.80, 10,893.51 and 2,643.72

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Solution

The fourth proportional to 7,261.80, 10,893.51 and 2,643.72 is: 3,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.80 : 10,893.51 = 2,643.72 : x
  2. Step 2: Convert to fraction form
    7,261.80/10,893.51 = 2,643.72/x
  3. Step 3: Cross multiply
    7,261.80x = 10,893.51 × 2,643.72
  4. Step 4: Simplify right side
    7,261.80x = 28,799,390.26
  5. Step 5: Solve for x
    x = 28,799,390.26/7,261.80
  6. Step 6: Final answer
    x = 3,965.87

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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.