Home / 5,119.02-7,672.68-2,489.06

Finding the Fourth Proportional to 5,119.02, 7,672.68 and 2,489.06

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Solution

The fourth proportional to 5,119.02, 7,672.68 and 2,489.06 is: 3,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.02 : 7,672.68 = 2,489.06 : x
  2. Step 2: Convert to fraction form
    5,119.02/7,672.68 = 2,489.06/x
  3. Step 3: Cross multiply
    5,119.02x = 7,672.68 × 2,489.06
  4. Step 4: Simplify right side
    5,119.02x = 19,097,722.52
  5. Step 5: Solve for x
    x = 19,097,722.52/5,119.02
  6. Step 6: Final answer
    x = 3,730.74

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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.