Home / 2,137.53-3,203.28-1,916.76

Finding the Fourth Proportional to 2,137.53, 3,203.28 and 1,916.76

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Solution

The fourth proportional to 2,137.53, 3,203.28 and 1,916.76 is: 2,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.53 : 3,203.28 = 1,916.76 : x
  2. Step 2: Convert to fraction form
    2,137.53/3,203.28 = 1,916.76/x
  3. Step 3: Cross multiply
    2,137.53x = 3,203.28 × 1,916.76
  4. Step 4: Simplify right side
    2,137.53x = 6,139,918.97
  5. Step 5: Solve for x
    x = 6,139,918.97/2,137.53
  6. Step 6: Final answer
    x = 2,872.44

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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.