Home / 4,753.62-7,128.60-2,121.93

Finding the Fourth Proportional to 4,753.62, 7,128.60 and 2,121.93

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Solution

The fourth proportional to 4,753.62, 7,128.60 and 2,121.93 is: 3,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.62 : 7,128.60 = 2,121.93 : x
  2. Step 2: Convert to fraction form
    4,753.62/7,128.60 = 2,121.93/x
  3. Step 3: Cross multiply
    4,753.62x = 7,128.60 × 2,121.93
  4. Step 4: Simplify right side
    4,753.62x = 15,126,390.20
  5. Step 5: Solve for x
    x = 15,126,390.20/4,753.62
  6. Step 6: Final answer
    x = 3,182.08

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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.