Home / 5,122.46-7,072.47-3,925.32

Finding the Fourth Proportional to 5,122.46, 7,072.47 and 3,925.32

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Solution

The fourth proportional to 5,122.46, 7,072.47 and 3,925.32 is: 5,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.46 : 7,072.47 = 3,925.32 : x
  2. Step 2: Convert to fraction form
    5,122.46/7,072.47 = 3,925.32/x
  3. Step 3: Cross multiply
    5,122.46x = 7,072.47 × 3,925.32
  4. Step 4: Simplify right side
    5,122.46x = 27,761,707.94
  5. Step 5: Solve for x
    x = 27,761,707.94/5,122.46
  6. Step 6: Final answer
    x = 5,419.61

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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.