Home / 5,187.82-7,781.18-2,068.24

Finding the Fourth Proportional to 5,187.82, 7,781.18 and 2,068.24

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Solution

The fourth proportional to 5,187.82, 7,781.18 and 2,068.24 is: 3,102.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.82 : 7,781.18 = 2,068.24 : x
  2. Step 2: Convert to fraction form
    5,187.82/7,781.18 = 2,068.24/x
  3. Step 3: Cross multiply
    5,187.82x = 7,781.18 × 2,068.24
  4. Step 4: Simplify right side
    5,187.82x = 16,093,347.72
  5. Step 5: Solve for x
    x = 16,093,347.72/5,187.82
  6. Step 6: Final answer
    x = 3,102.14

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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.