Home / 2,982.05-4,115.15-1,723.01

Finding the Fourth Proportional to 2,982.05, 4,115.15 and 1,723.01

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Solution

The fourth proportional to 2,982.05, 4,115.15 and 1,723.01 is: 2,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.05 : 4,115.15 = 1,723.01 : x
  2. Step 2: Convert to fraction form
    2,982.05/4,115.15 = 1,723.01/x
  3. Step 3: Cross multiply
    2,982.05x = 4,115.15 × 1,723.01
  4. Step 4: Simplify right side
    2,982.05x = 7,090,421.87
  5. Step 5: Solve for x
    x = 7,090,421.87/2,982.05
  6. Step 6: Final answer
    x = 2,377.70

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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.