Home / 3,099.47-4,273.79-2,389.71

Finding the Fourth Proportional to 3,099.47, 4,273.79 and 2,389.71

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Solution

The fourth proportional to 3,099.47, 4,273.79 and 2,389.71 is: 3,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.47 : 4,273.79 = 2,389.71 : x
  2. Step 2: Convert to fraction form
    3,099.47/4,273.79 = 2,389.71/x
  3. Step 3: Cross multiply
    3,099.47x = 4,273.79 × 2,389.71
  4. Step 4: Simplify right side
    3,099.47x = 10,213,106.75
  5. Step 5: Solve for x
    x = 10,213,106.75/3,099.47
  6. Step 6: Final answer
    x = 3,295.11

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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.