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Finding the Fourth Proportional to 7,071.88, 10,610.88 and 2,690.68

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Solution

The fourth proportional to 7,071.88, 10,610.88 and 2,690.68 is: 4,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.88 : 10,610.88 = 2,690.68 : x
  2. Step 2: Convert to fraction form
    7,071.88/10,610.88 = 2,690.68/x
  3. Step 3: Cross multiply
    7,071.88x = 10,610.88 × 2,690.68
  4. Step 4: Simplify right side
    7,071.88x = 28,550,482.60
  5. Step 5: Solve for x
    x = 28,550,482.60/7,071.88
  6. Step 6: Final answer
    x = 4,037.18

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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.