Home / 3,440.10-5,165.55-1,982.10

Finding the Fourth Proportional to 3,440.10, 5,165.55 and 1,982.10

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Solution

The fourth proportional to 3,440.10, 5,165.55 and 1,982.10 is: 2,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.10 : 5,165.55 = 1,982.10 : x
  2. Step 2: Convert to fraction form
    3,440.10/5,165.55 = 1,982.10/x
  3. Step 3: Cross multiply
    3,440.10x = 5,165.55 × 1,982.10
  4. Step 4: Simplify right side
    3,440.10x = 10,238,636.66
  5. Step 5: Solve for x
    x = 10,238,636.66/3,440.10
  6. Step 6: Final answer
    x = 2,976.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.