Home / 6,543.42-9,815.68-2,845.78

Finding the Fourth Proportional to 6,543.42, 9,815.68 and 2,845.78

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Solution

The fourth proportional to 6,543.42, 9,815.68 and 2,845.78 is: 4,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.42 : 9,815.68 = 2,845.78 : x
  2. Step 2: Convert to fraction form
    6,543.42/9,815.68 = 2,845.78/x
  3. Step 3: Cross multiply
    6,543.42x = 9,815.68 × 2,845.78
  4. Step 4: Simplify right side
    6,543.42x = 27,933,265.83
  5. Step 5: Solve for x
    x = 27,933,265.83/6,543.42
  6. Step 6: Final answer
    x = 4,268.91

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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.