Home / 5,181.09-7,772.78-1,894.18

Finding the Fourth Proportional to 5,181.09, 7,772.78 and 1,894.18

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Solution

The fourth proportional to 5,181.09, 7,772.78 and 1,894.18 is: 2,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.09 : 7,772.78 = 1,894.18 : x
  2. Step 2: Convert to fraction form
    5,181.09/7,772.78 = 1,894.18/x
  3. Step 3: Cross multiply
    5,181.09x = 7,772.78 × 1,894.18
  4. Step 4: Simplify right side
    5,181.09x = 14,723,044.42
  5. Step 5: Solve for x
    x = 14,723,044.42/5,181.09
  6. Step 6: Final answer
    x = 2,841.69

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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.