Home / 2,989.38-4,125.41-1,730.46

Finding the Fourth Proportional to 2,989.38, 4,125.41 and 1,730.46

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Solution

The fourth proportional to 2,989.38, 4,125.41 and 1,730.46 is: 2,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.38 : 4,125.41 = 1,730.46 : x
  2. Step 2: Convert to fraction form
    2,989.38/4,125.41 = 1,730.46/x
  3. Step 3: Cross multiply
    2,989.38x = 4,125.41 × 1,730.46
  4. Step 4: Simplify right side
    2,989.38x = 7,138,848.34
  5. Step 5: Solve for x
    x = 7,138,848.34/2,989.38
  6. Step 6: Final answer
    x = 2,388.07

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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.