Home / 6,403.55-8,838.57-4,171.55

Finding the Fourth Proportional to 6,403.55, 8,838.57 and 4,171.55

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Solution

The fourth proportional to 6,403.55, 8,838.57 and 4,171.55 is: 5,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.55 : 8,838.57 = 4,171.55 : x
  2. Step 2: Convert to fraction form
    6,403.55/8,838.57 = 4,171.55/x
  3. Step 3: Cross multiply
    6,403.55x = 8,838.57 × 4,171.55
  4. Step 4: Simplify right side
    6,403.55x = 36,870,536.68
  5. Step 5: Solve for x
    x = 36,870,536.68/6,403.55
  6. Step 6: Final answer
    x = 5,757.83

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1.5x scale

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.