Home / 3,534.81-4,876.61-2,118.56

Finding the Fourth Proportional to 3,534.81, 4,876.61 and 2,118.56

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Solution

The fourth proportional to 3,534.81, 4,876.61 and 2,118.56 is: 2,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,534.81 : 4,876.61 = 2,118.56 : x
  2. Step 2: Convert to fraction form
    3,534.81/4,876.61 = 2,118.56/x
  3. Step 3: Cross multiply
    3,534.81x = 4,876.61 × 2,118.56
  4. Step 4: Simplify right side
    3,534.81x = 10,331,355.91
  5. Step 5: Solve for x
    x = 10,331,355.91/3,534.81
  6. Step 6: Final answer
    x = 2,922.75

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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.