Home / 5,117.79-7,666.63-2,654.22

Finding the Fourth Proportional to 5,117.79, 7,666.63 and 2,654.22

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Solution

The fourth proportional to 5,117.79, 7,666.63 and 2,654.22 is: 3,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.79 : 7,666.63 = 2,654.22 : x
  2. Step 2: Convert to fraction form
    5,117.79/7,666.63 = 2,654.22/x
  3. Step 3: Cross multiply
    5,117.79x = 7,666.63 × 2,654.22
  4. Step 4: Simplify right side
    5,117.79x = 20,348,922.68
  5. Step 5: Solve for x
    x = 20,348,922.68/5,117.79
  6. Step 6: Final answer
    x = 3,976.12

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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.