Home / 5,181.50-7,775.76-2,258.12

Finding the Fourth Proportional to 5,181.50, 7,775.76 and 2,258.12

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Solution

The fourth proportional to 5,181.50, 7,775.76 and 2,258.12 is: 3,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.50 : 7,775.76 = 2,258.12 : x
  2. Step 2: Convert to fraction form
    5,181.50/7,775.76 = 2,258.12/x
  3. Step 3: Cross multiply
    5,181.50x = 7,775.76 × 2,258.12
  4. Step 4: Simplify right side
    5,181.50x = 17,558,599.17
  5. Step 5: Solve for x
    x = 17,558,599.17/5,181.50
  6. Step 6: Final answer
    x = 3,388.71

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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.