Home / 2,982.47-4,115.34-1,722.92

Finding the Fourth Proportional to 2,982.47, 4,115.34 and 1,722.92

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Solution

The fourth proportional to 2,982.47, 4,115.34 and 1,722.92 is: 2,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.47 : 4,115.34 = 1,722.92 : x
  2. Step 2: Convert to fraction form
    2,982.47/4,115.34 = 1,722.92/x
  3. Step 3: Cross multiply
    2,982.47x = 4,115.34 × 1,722.92
  4. Step 4: Simplify right side
    2,982.47x = 7,090,381.02
  5. Step 5: Solve for x
    x = 7,090,381.02/2,982.47
  6. Step 6: Final answer
    x = 2,377.36

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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.