Home / 2,695.85-4,043.78-1,213.35

Finding the Fourth Proportional to 2,695.85, 4,043.78 and 1,213.35

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Solution

The fourth proportional to 2,695.85, 4,043.78 and 1,213.35 is: 1,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.85 : 4,043.78 = 1,213.35 : x
  2. Step 2: Convert to fraction form
    2,695.85/4,043.78 = 1,213.35/x
  3. Step 3: Cross multiply
    2,695.85x = 4,043.78 × 1,213.35
  4. Step 4: Simplify right side
    2,695.85x = 4,906,500.24
  5. Step 5: Solve for x
    x = 4,906,500.24/2,695.85
  6. Step 6: Final answer
    x = 1,820.02

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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.