Home / 7,137.57-10,706.64-1,943.43

Finding the Fourth Proportional to 7,137.57, 10,706.64 and 1,943.43

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Solution

The fourth proportional to 7,137.57, 10,706.64 and 1,943.43 is: 2,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.57 : 10,706.64 = 1,943.43 : x
  2. Step 2: Convert to fraction form
    7,137.57/10,706.64 = 1,943.43/x
  3. Step 3: Cross multiply
    7,137.57x = 10,706.64 × 1,943.43
  4. Step 4: Simplify right side
    7,137.57x = 20,807,605.38
  5. Step 5: Solve for x
    x = 20,807,605.38/7,137.57
  6. Step 6: Final answer
    x = 2,915.22

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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.