Home / 2,581.11-3,561.94-1,698.50

Finding the Fourth Proportional to 2,581.11, 3,561.94 and 1,698.50

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Solution

The fourth proportional to 2,581.11, 3,561.94 and 1,698.50 is: 2,343.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.11 : 3,561.94 = 1,698.50 : x
  2. Step 2: Convert to fraction form
    2,581.11/3,561.94 = 1,698.50/x
  3. Step 3: Cross multiply
    2,581.11x = 3,561.94 × 1,698.50
  4. Step 4: Simplify right side
    2,581.11x = 6,049,937.28
  5. Step 5: Solve for x
    x = 6,049,937.28/2,581.11
  6. Step 6: Final answer
    x = 2,343.93

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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.