Home / 5,298.09-7,311.41-2,940.39

Finding the Fourth Proportional to 5,298.09, 7,311.41 and 2,940.39

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Solution

The fourth proportional to 5,298.09, 7,311.41 and 2,940.39 is: 4,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.09 : 7,311.41 = 2,940.39 : x
  2. Step 2: Convert to fraction form
    5,298.09/7,311.41 = 2,940.39/x
  3. Step 3: Cross multiply
    5,298.09x = 7,311.41 × 2,940.39
  4. Step 4: Simplify right side
    5,298.09x = 21,498,382.15
  5. Step 5: Solve for x
    x = 21,498,382.15/5,298.09
  6. Step 6: Final answer
    x = 4,057.76

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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.