Home / 3,936.17-5,428.16-3,038.47

Finding the Fourth Proportional to 3,936.17, 5,428.16 and 3,038.47

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Solution

The fourth proportional to 3,936.17, 5,428.16 and 3,038.47 is: 4,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.17 : 5,428.16 = 3,038.47 : x
  2. Step 2: Convert to fraction form
    3,936.17/5,428.16 = 3,038.47/x
  3. Step 3: Cross multiply
    3,936.17x = 5,428.16 × 3,038.47
  4. Step 4: Simplify right side
    3,936.17x = 16,493,293.72
  5. Step 5: Solve for x
    x = 16,493,293.72/3,936.17
  6. Step 6: Final answer
    x = 4,190.19

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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.