Home / 4,991.46-6,891.09-3,315.15

Finding the Fourth Proportional to 4,991.46, 6,891.09 and 3,315.15

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Solution

The fourth proportional to 4,991.46, 6,891.09 and 3,315.15 is: 4,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.46 : 6,891.09 = 3,315.15 : x
  2. Step 2: Convert to fraction form
    4,991.46/6,891.09 = 3,315.15/x
  3. Step 3: Cross multiply
    4,991.46x = 6,891.09 × 3,315.15
  4. Step 4: Simplify right side
    4,991.46x = 22,844,997.01
  5. Step 5: Solve for x
    x = 22,844,997.01/4,991.46
  6. Step 6: Final answer
    x = 4,576.82

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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.