Home / 4,990.69-6,889.85-3,001.69

Finding the Fourth Proportional to 4,990.69, 6,889.85 and 3,001.69

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Solution

The fourth proportional to 4,990.69, 6,889.85 and 3,001.69 is: 4,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.69 : 6,889.85 = 3,001.69 : x
  2. Step 2: Convert to fraction form
    4,990.69/6,889.85 = 3,001.69/x
  3. Step 3: Cross multiply
    4,990.69x = 6,889.85 × 3,001.69
  4. Step 4: Simplify right side
    4,990.69x = 20,681,172.87
  5. Step 5: Solve for x
    x = 20,681,172.87/4,990.69
  6. Step 6: Final answer
    x = 4,143.95

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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.