Home / 2,690.28-3,711.06-2,193.48

Finding the Fourth Proportional to 2,690.28, 3,711.06 and 2,193.48

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Solution

The fourth proportional to 2,690.28, 3,711.06 and 2,193.48 is: 3,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.28 : 3,711.06 = 2,193.48 : x
  2. Step 2: Convert to fraction form
    2,690.28/3,711.06 = 2,193.48/x
  3. Step 3: Cross multiply
    2,690.28x = 3,711.06 × 2,193.48
  4. Step 4: Simplify right side
    2,690.28x = 8,140,135.89
  5. Step 5: Solve for x
    x = 8,140,135.89/2,690.28
  6. Step 6: Final answer
    x = 3,025.76

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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.