Home / 7,137.24-10,705.86-1,943.88

Finding the Fourth Proportional to 7,137.24, 10,705.86 and 1,943.88

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Solution

The fourth proportional to 7,137.24, 10,705.86 and 1,943.88 is: 2,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.24 : 10,705.86 = 1,943.88 : x
  2. Step 2: Convert to fraction form
    7,137.24/10,705.86 = 1,943.88/x
  3. Step 3: Cross multiply
    7,137.24x = 10,705.86 × 1,943.88
  4. Step 4: Simplify right side
    7,137.24x = 20,810,907.14
  5. Step 5: Solve for x
    x = 20,810,907.14/7,137.24
  6. Step 6: Final answer
    x = 2,915.82

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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.