Home / 3,405.92-5,117.40-2,173.88

Finding the Fourth Proportional to 3,405.92, 5,117.40 and 2,173.88

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Solution

The fourth proportional to 3,405.92, 5,117.40 and 2,173.88 is: 3,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.92 : 5,117.40 = 2,173.88 : x
  2. Step 2: Convert to fraction form
    3,405.92/5,117.40 = 2,173.88/x
  3. Step 3: Cross multiply
    3,405.92x = 5,117.40 × 2,173.88
  4. Step 4: Simplify right side
    3,405.92x = 11,124,613.51
  5. Step 5: Solve for x
    x = 11,124,613.51/3,405.92
  6. Step 6: Final answer
    x = 3,266.26

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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.