Home / 5,118.13-7,677.20-1,608.12

Finding the Fourth Proportional to 5,118.13, 7,677.20 and 1,608.12

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Solution

The fourth proportional to 5,118.13, 7,677.20 and 1,608.12 is: 2,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.13 : 7,677.20 = 1,608.12 : x
  2. Step 2: Convert to fraction form
    5,118.13/7,677.20 = 1,608.12/x
  3. Step 3: Cross multiply
    5,118.13x = 7,677.20 × 1,608.12
  4. Step 4: Simplify right side
    5,118.13x = 12,345,850.82
  5. Step 5: Solve for x
    x = 12,345,850.82/5,118.13
  6. Step 6: Final answer
    x = 2,412.18

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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.