Home / 6,543.30-9,815.40-2,163.84

Finding the Fourth Proportional to 6,543.30, 9,815.40 and 2,163.84

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Solution

The fourth proportional to 6,543.30, 9,815.40 and 2,163.84 is: 3,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.30 : 9,815.40 = 2,163.84 : x
  2. Step 2: Convert to fraction form
    6,543.30/9,815.40 = 2,163.84/x
  3. Step 3: Cross multiply
    6,543.30x = 9,815.40 × 2,163.84
  4. Step 4: Simplify right side
    6,543.30x = 21,238,955.14
  5. Step 5: Solve for x
    x = 21,238,955.14/6,543.30
  6. Step 6: Final answer
    x = 3,245.91

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1.5x scale

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.