Home / 3,935.70-5,406.17-3,916.26

Finding the Fourth Proportional to 3,935.70, 5,406.17 and 3,916.26

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Solution

The fourth proportional to 3,935.70, 5,406.17 and 3,916.26 is: 5,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.70 : 5,406.17 = 3,916.26 : x
  2. Step 2: Convert to fraction form
    3,935.70/5,406.17 = 3,916.26/x
  3. Step 3: Cross multiply
    3,935.70x = 5,406.17 × 3,916.26
  4. Step 4: Simplify right side
    3,935.70x = 21,171,947.74
  5. Step 5: Solve for x
    x = 21,171,947.74/3,935.70
  6. Step 6: Final answer
    x = 5,379.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.