Home / 6,541.14-9,811.80-2,158.50

Finding the Fourth Proportional to 6,541.14, 9,811.80 and 2,158.50

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Solution

The fourth proportional to 6,541.14, 9,811.80 and 2,158.50 is: 3,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,541.14 : 9,811.80 = 2,158.50 : x
  2. Step 2: Convert to fraction form
    6,541.14/9,811.80 = 2,158.50/x
  3. Step 3: Cross multiply
    6,541.14x = 9,811.80 × 2,158.50
  4. Step 4: Simplify right side
    6,541.14x = 21,178,770.30
  5. Step 5: Solve for x
    x = 21,178,770.30/6,541.14
  6. Step 6: Final answer
    x = 3,237.78

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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.