Home / 6,543.36-9,815.31-2,160.81

Finding the Fourth Proportional to 6,543.36, 9,815.31 and 2,160.81

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Solution

The fourth proportional to 6,543.36, 9,815.31 and 2,160.81 is: 3,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.36 : 9,815.31 = 2,160.81 : x
  2. Step 2: Convert to fraction form
    6,543.36/9,815.31 = 2,160.81/x
  3. Step 3: Cross multiply
    6,543.36x = 9,815.31 × 2,160.81
  4. Step 4: Simplify right side
    6,543.36x = 21,209,020.00
  5. Step 5: Solve for x
    x = 21,209,020.00/6,543.36
  6. Step 6: Final answer
    x = 3,241.30

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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.