Home / 3,412.60-5,115.64-2,176.52

Finding the Fourth Proportional to 3,412.60, 5,115.64 and 2,176.52

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Solution

The fourth proportional to 3,412.60, 5,115.64 and 2,176.52 is: 3,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.60 : 5,115.64 = 2,176.52 : x
  2. Step 2: Convert to fraction form
    3,412.60/5,115.64 = 2,176.52/x
  3. Step 3: Cross multiply
    3,412.60x = 5,115.64 × 2,176.52
  4. Step 4: Simplify right side
    3,412.60x = 11,134,292.77
  5. Step 5: Solve for x
    x = 11,134,292.77/3,412.60
  6. Step 6: Final answer
    x = 3,262.70

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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.