Home / 5,181.84-7,151.76-3,087.18

Finding the Fourth Proportional to 5,181.84, 7,151.76 and 3,087.18

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Solution

The fourth proportional to 5,181.84, 7,151.76 and 3,087.18 is: 4,260.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.84 : 7,151.76 = 3,087.18 : x
  2. Step 2: Convert to fraction form
    5,181.84/7,151.76 = 3,087.18/x
  3. Step 3: Cross multiply
    5,181.84x = 7,151.76 × 3,087.18
  4. Step 4: Simplify right side
    5,181.84x = 22,078,770.44
  5. Step 5: Solve for x
    x = 22,078,770.44/5,181.84
  6. Step 6: Final answer
    x = 4,260.80

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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.