Home / 2,916.76-4,378.02-1,993.72

Finding the Fourth Proportional to 2,916.76, 4,378.02 and 1,993.72

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Solution

The fourth proportional to 2,916.76, 4,378.02 and 1,993.72 is: 2,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.76 : 4,378.02 = 1,993.72 : x
  2. Step 2: Convert to fraction form
    2,916.76/4,378.02 = 1,993.72/x
  3. Step 3: Cross multiply
    2,916.76x = 4,378.02 × 1,993.72
  4. Step 4: Simplify right side
    2,916.76x = 8,728,546.03
  5. Step 5: Solve for x
    x = 8,728,546.03/2,916.76
  6. Step 6: Final answer
    x = 2,992.55

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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.