Home / 5,181.49-7,765.73-4,081.51

Finding the Fourth Proportional to 5,181.49, 7,765.73 and 4,081.51

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Solution

The fourth proportional to 5,181.49, 7,765.73 and 4,081.51 is: 6,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.49 : 7,765.73 = 4,081.51 : x
  2. Step 2: Convert to fraction form
    5,181.49/7,765.73 = 4,081.51/x
  3. Step 3: Cross multiply
    5,181.49x = 7,765.73 × 4,081.51
  4. Step 4: Simplify right side
    5,181.49x = 31,695,845.42
  5. Step 5: Solve for x
    x = 31,695,845.42/5,181.49
  6. Step 6: Final answer
    x = 6,117.14

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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.