Home / 4,990.50-6,889.59-3,001.50

Finding the Fourth Proportional to 4,990.50, 6,889.59 and 3,001.50

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Solution

The fourth proportional to 4,990.50, 6,889.59 and 3,001.50 is: 4,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.50 : 6,889.59 = 3,001.50 : x
  2. Step 2: Convert to fraction form
    4,990.50/6,889.59 = 3,001.50/x
  3. Step 3: Cross multiply
    4,990.50x = 6,889.59 × 3,001.50
  4. Step 4: Simplify right side
    4,990.50x = 20,679,104.39
  5. Step 5: Solve for x
    x = 20,679,104.39/4,990.50
  6. Step 6: Final answer
    x = 4,143.69

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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.