Home / 2,989.22-4,125.26-1,730.33

Finding the Fourth Proportional to 2,989.22, 4,125.26 and 1,730.33

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Solution

The fourth proportional to 2,989.22, 4,125.26 and 1,730.33 is: 2,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.22 : 4,125.26 = 1,730.33 : x
  2. Step 2: Convert to fraction form
    2,989.22/4,125.26 = 1,730.33/x
  3. Step 3: Cross multiply
    2,989.22x = 4,125.26 × 1,730.33
  4. Step 4: Simplify right side
    2,989.22x = 7,138,061.14
  5. Step 5: Solve for x
    x = 7,138,061.14/2,989.22
  6. Step 6: Final answer
    x = 2,387.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.