Home / 3,102.08-4,276.96-2,262.12

Finding the Fourth Proportional to 3,102.08, 4,276.96 and 2,262.12

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Solution

The fourth proportional to 3,102.08, 4,276.96 and 2,262.12 is: 3,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.08 : 4,276.96 = 2,262.12 : x
  2. Step 2: Convert to fraction form
    3,102.08/4,276.96 = 2,262.12/x
  3. Step 3: Cross multiply
    3,102.08x = 4,276.96 × 2,262.12
  4. Step 4: Simplify right side
    3,102.08x = 9,674,996.76
  5. Step 5: Solve for x
    x = 9,674,996.76/3,102.08
  6. Step 6: Final answer
    x = 3,118.87

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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.