Home / 2,884.61-3,979.37-1,889.45

Finding the Fourth Proportional to 2,884.61, 3,979.37 and 1,889.45

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Solution

The fourth proportional to 2,884.61, 3,979.37 and 1,889.45 is: 2,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.61 : 3,979.37 = 1,889.45 : x
  2. Step 2: Convert to fraction form
    2,884.61/3,979.37 = 1,889.45/x
  3. Step 3: Cross multiply
    2,884.61x = 3,979.37 × 1,889.45
  4. Step 4: Simplify right side
    2,884.61x = 7,518,791.30
  5. Step 5: Solve for x
    x = 7,518,791.30/2,884.61
  6. Step 6: Final answer
    x = 2,606.52

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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.