Home / 5,155.42-7,721.39-4,037.86

Finding the Fourth Proportional to 5,155.42, 7,721.39 and 4,037.86

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Solution

The fourth proportional to 5,155.42, 7,721.39 and 4,037.86 is: 6,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.42 : 7,721.39 = 4,037.86 : x
  2. Step 2: Convert to fraction form
    5,155.42/7,721.39 = 4,037.86/x
  3. Step 3: Cross multiply
    5,155.42x = 7,721.39 × 4,037.86
  4. Step 4: Simplify right side
    5,155.42x = 31,177,891.83
  5. Step 5: Solve for x
    x = 31,177,891.83/5,155.42
  6. Step 6: Final answer
    x = 6,047.59

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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.