Home / 3,678.02-5,519.01-2,857.94

Finding the Fourth Proportional to 3,678.02, 5,519.01 and 2,857.94

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Solution

The fourth proportional to 3,678.02, 5,519.01 and 2,857.94 is: 4,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.02 : 5,519.01 = 2,857.94 : x
  2. Step 2: Convert to fraction form
    3,678.02/5,519.01 = 2,857.94/x
  3. Step 3: Cross multiply
    3,678.02x = 5,519.01 × 2,857.94
  4. Step 4: Simplify right side
    3,678.02x = 15,772,999.44
  5. Step 5: Solve for x
    x = 15,772,999.44/3,678.02
  6. Step 6: Final answer
    x = 4,288.45

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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.