Home / 5,119.51-7,682.24-1,999.35

Finding the Fourth Proportional to 5,119.51, 7,682.24 and 1,999.35

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Solution

The fourth proportional to 5,119.51, 7,682.24 and 1,999.35 is: 3,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.51 : 7,682.24 = 1,999.35 : x
  2. Step 2: Convert to fraction form
    5,119.51/7,682.24 = 1,999.35/x
  3. Step 3: Cross multiply
    5,119.51x = 7,682.24 × 1,999.35
  4. Step 4: Simplify right side
    5,119.51x = 15,359,486.54
  5. Step 5: Solve for x
    x = 15,359,486.54/5,119.51
  6. Step 6: Final answer
    x = 3,000.19

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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.