Home / 5,412.39-8,105.55-2,772.93

Finding the Fourth Proportional to 5,412.39, 8,105.55 and 2,772.93

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Solution

The fourth proportional to 5,412.39, 8,105.55 and 2,772.93 is: 4,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.39 : 8,105.55 = 2,772.93 : x
  2. Step 2: Convert to fraction form
    5,412.39/8,105.55 = 2,772.93/x
  3. Step 3: Cross multiply
    5,412.39x = 8,105.55 × 2,772.93
  4. Step 4: Simplify right side
    5,412.39x = 22,476,122.76
  5. Step 5: Solve for x
    x = 22,476,122.76/5,412.39
  6. Step 6: Final answer
    x = 4,152.72

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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.