Home / 3,935.16-5,431.95-2,609.31

Finding the Fourth Proportional to 3,935.16, 5,431.95 and 2,609.31

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Solution

The fourth proportional to 3,935.16, 5,431.95 and 2,609.31 is: 3,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.16 : 5,431.95 = 2,609.31 : x
  2. Step 2: Convert to fraction form
    3,935.16/5,431.95 = 2,609.31/x
  3. Step 3: Cross multiply
    3,935.16x = 5,431.95 × 2,609.31
  4. Step 4: Simplify right side
    3,935.16x = 14,173,641.45
  5. Step 5: Solve for x
    x = 14,173,641.45/3,935.16
  6. Step 6: Final answer
    x = 3,601.80

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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.