Home / 2,137.59-2,949.11-1,298.64

Finding the Fourth Proportional to 2,137.59, 2,949.11 and 1,298.64

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Solution

The fourth proportional to 2,137.59, 2,949.11 and 1,298.64 is: 1,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.59 : 2,949.11 = 1,298.64 : x
  2. Step 2: Convert to fraction form
    2,137.59/2,949.11 = 1,298.64/x
  3. Step 3: Cross multiply
    2,137.59x = 2,949.11 × 1,298.64
  4. Step 4: Simplify right side
    2,137.59x = 3,829,825.72
  5. Step 5: Solve for x
    x = 3,829,825.72/2,137.59
  6. Step 6: Final answer
    x = 1,791.66

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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.