Home / 3,835.79-5,293.03-2,157.26

Finding the Fourth Proportional to 3,835.79, 5,293.03 and 2,157.26

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Solution

The fourth proportional to 3,835.79, 5,293.03 and 2,157.26 is: 2,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.79 : 5,293.03 = 2,157.26 : x
  2. Step 2: Convert to fraction form
    3,835.79/5,293.03 = 2,157.26/x
  3. Step 3: Cross multiply
    3,835.79x = 5,293.03 × 2,157.26
  4. Step 4: Simplify right side
    3,835.79x = 11,418,431.11
  5. Step 5: Solve for x
    x = 11,418,431.11/3,835.79
  6. Step 6: Final answer
    x = 2,976.82

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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.