Home / 5,181.76-7,772.68-1,894.96

Finding the Fourth Proportional to 5,181.76, 7,772.68 and 1,894.96

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Solution

The fourth proportional to 5,181.76, 7,772.68 and 1,894.96 is: 2,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.76 : 7,772.68 = 1,894.96 : x
  2. Step 2: Convert to fraction form
    5,181.76/7,772.68 = 1,894.96/x
  3. Step 3: Cross multiply
    5,181.76x = 7,772.68 × 1,894.96
  4. Step 4: Simplify right side
    5,181.76x = 14,728,917.69
  5. Step 5: Solve for x
    x = 14,728,917.69/5,181.76
  6. Step 6: Final answer
    x = 2,842.45

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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.