Home / 1,916.50-2,644.78-1,254.46

Finding the Fourth Proportional to 1,916.50, 2,644.78 and 1,254.46

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Solution

The fourth proportional to 1,916.50, 2,644.78 and 1,254.46 is: 1,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.50 : 2,644.78 = 1,254.46 : x
  2. Step 2: Convert to fraction form
    1,916.50/2,644.78 = 1,254.46/x
  3. Step 3: Cross multiply
    1,916.50x = 2,644.78 × 1,254.46
  4. Step 4: Simplify right side
    1,916.50x = 3,317,770.72
  5. Step 5: Solve for x
    x = 3,317,770.72/1,916.50
  6. Step 6: Final answer
    x = 1,731.16

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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.