Home / 5,490.71-7,576.43-3,100.28

Finding the Fourth Proportional to 5,490.71, 7,576.43 and 3,100.28

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Solution

The fourth proportional to 5,490.71, 7,576.43 and 3,100.28 is: 4,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.71 : 7,576.43 = 3,100.28 : x
  2. Step 2: Convert to fraction form
    5,490.71/7,576.43 = 3,100.28/x
  3. Step 3: Cross multiply
    5,490.71x = 7,576.43 × 3,100.28
  4. Step 4: Simplify right side
    5,490.71x = 23,489,057.84
  5. Step 5: Solve for x
    x = 23,489,057.84/5,490.71
  6. Step 6: Final answer
    x = 4,277.97

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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.