Home / 2,982.19-4,115.38-1,655.87

Finding the Fourth Proportional to 2,982.19, 4,115.38 and 1,655.87

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Solution

The fourth proportional to 2,982.19, 4,115.38 and 1,655.87 is: 2,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.19 : 4,115.38 = 1,655.87 : x
  2. Step 2: Convert to fraction form
    2,982.19/4,115.38 = 1,655.87/x
  3. Step 3: Cross multiply
    2,982.19x = 4,115.38 × 1,655.87
  4. Step 4: Simplify right side
    2,982.19x = 6,814,534.28
  5. Step 5: Solve for x
    x = 6,814,534.28/2,982.19
  6. Step 6: Final answer
    x = 2,285.08

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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.