Home / 4,990.72-6,889.96-3,001.76

Finding the Fourth Proportional to 4,990.72, 6,889.96 and 3,001.76

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Solution

The fourth proportional to 4,990.72, 6,889.96 and 3,001.76 is: 4,144.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.72 : 6,889.96 = 3,001.76 : x
  2. Step 2: Convert to fraction form
    4,990.72/6,889.96 = 3,001.76/x
  3. Step 3: Cross multiply
    4,990.72x = 6,889.96 × 3,001.76
  4. Step 4: Simplify right side
    4,990.72x = 20,682,006.33
  5. Step 5: Solve for x
    x = 20,682,006.33/4,990.72
  6. Step 6: Final answer
    x = 4,144.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.