Home / 2,982.28-4,115.60-1,803.08

Finding the Fourth Proportional to 2,982.28, 4,115.60 and 1,803.08

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Solution

The fourth proportional to 2,982.28, 4,115.60 and 1,803.08 is: 2,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.28 : 4,115.60 = 1,803.08 : x
  2. Step 2: Convert to fraction form
    2,982.28/4,115.60 = 1,803.08/x
  3. Step 3: Cross multiply
    2,982.28x = 4,115.60 × 1,803.08
  4. Step 4: Simplify right side
    2,982.28x = 7,420,756.05
  5. Step 5: Solve for x
    x = 7,420,756.05/2,982.28
  6. Step 6: Final answer
    x = 2,488.28

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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.