Home / 2,635.62-3,953.45-1,811.40

Finding the Fourth Proportional to 2,635.62, 3,953.45 and 1,811.40

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Solution

The fourth proportional to 2,635.62, 3,953.45 and 1,811.40 is: 2,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.62 : 3,953.45 = 1,811.40 : x
  2. Step 2: Convert to fraction form
    2,635.62/3,953.45 = 1,811.40/x
  3. Step 3: Cross multiply
    2,635.62x = 3,953.45 × 1,811.40
  4. Step 4: Simplify right side
    2,635.62x = 7,161,270.27
  5. Step 5: Solve for x
    x = 7,161,270.27/2,635.62
  6. Step 6: Final answer
    x = 2,717.11

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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.