Home / 2,883.74-3,979.87-1,889.58

Finding the Fourth Proportional to 2,883.74, 3,979.87 and 1,889.58

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Solution

The fourth proportional to 2,883.74, 3,979.87 and 1,889.58 is: 2,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.74 : 3,979.87 = 1,889.58 : x
  2. Step 2: Convert to fraction form
    2,883.74/3,979.87 = 1,889.58/x
  3. Step 3: Cross multiply
    2,883.74x = 3,979.87 × 1,889.58
  4. Step 4: Simplify right side
    2,883.74x = 7,520,278.03
  5. Step 5: Solve for x
    x = 7,520,278.03/2,883.74
  6. Step 6: Final answer
    x = 2,607.82

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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.