Home / 5,156.94-7,112.91-3,168.57

Finding the Fourth Proportional to 5,156.94, 7,112.91 and 3,168.57

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Solution

The fourth proportional to 5,156.94, 7,112.91 and 3,168.57 is: 4,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.94 : 7,112.91 = 3,168.57 : x
  2. Step 2: Convert to fraction form
    5,156.94/7,112.91 = 3,168.57/x
  3. Step 3: Cross multiply
    5,156.94x = 7,112.91 × 3,168.57
  4. Step 4: Simplify right side
    5,156.94x = 22,537,753.24
  5. Step 5: Solve for x
    x = 22,537,753.24/5,156.94
  6. Step 6: Final answer
    x = 4,370.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.