Home / 1,916.46-2,645.87-1,254.42

Finding the Fourth Proportional to 1,916.46, 2,645.87 and 1,254.42

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Solution

The fourth proportional to 1,916.46, 2,645.87 and 1,254.42 is: 1,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.46 : 2,645.87 = 1,254.42 : x
  2. Step 2: Convert to fraction form
    1,916.46/2,645.87 = 1,254.42/x
  3. Step 3: Cross multiply
    1,916.46x = 2,645.87 × 1,254.42
  4. Step 4: Simplify right side
    1,916.46x = 3,319,025.97
  5. Step 5: Solve for x
    x = 3,319,025.97/1,916.46
  6. Step 6: Final answer
    x = 1,731.85

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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.