Home / 3,680.10-5,078.62-2,001.62

Finding the Fourth Proportional to 3,680.10, 5,078.62 and 2,001.62

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Solution

The fourth proportional to 3,680.10, 5,078.62 and 2,001.62 is: 2,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.10 : 5,078.62 = 2,001.62 : x
  2. Step 2: Convert to fraction form
    3,680.10/5,078.62 = 2,001.62/x
  3. Step 3: Cross multiply
    3,680.10x = 5,078.62 × 2,001.62
  4. Step 4: Simplify right side
    3,680.10x = 10,165,467.36
  5. Step 5: Solve for x
    x = 10,165,467.36/3,680.10
  6. Step 6: Final answer
    x = 2,762.28

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1.5x scale

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.