Home / 3,678.83-5,076.69-2,000.20

Finding the Fourth Proportional to 3,678.83, 5,076.69 and 2,000.20

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Solution

The fourth proportional to 3,678.83, 5,076.69 and 2,000.20 is: 2,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.83 : 5,076.69 = 2,000.20 : x
  2. Step 2: Convert to fraction form
    3,678.83/5,076.69 = 2,000.20/x
  3. Step 3: Cross multiply
    3,678.83x = 5,076.69 × 2,000.20
  4. Step 4: Simplify right side
    3,678.83x = 10,154,369.95
  5. Step 5: Solve for x
    x = 10,154,369.95/3,678.83
  6. Step 6: Final answer
    x = 2,760.22

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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.