Home / 7,071.83-9,759.18-4,420.80

Finding the Fourth Proportional to 7,071.83, 9,759.18 and 4,420.80

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Solution

The fourth proportional to 7,071.83, 9,759.18 and 4,420.80 is: 6,100.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.83 : 9,759.18 = 4,420.80 : x
  2. Step 2: Convert to fraction form
    7,071.83/9,759.18 = 4,420.80/x
  3. Step 3: Cross multiply
    7,071.83x = 9,759.18 × 4,420.80
  4. Step 4: Simplify right side
    7,071.83x = 43,143,382.94
  5. Step 5: Solve for x
    x = 43,143,382.94/7,071.83
  6. Step 6: Final answer
    x = 6,100.74

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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.