Home / 4,230.82-5,835.72-2,638.18

Finding the Fourth Proportional to 4,230.82, 5,835.72 and 2,638.18

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Solution

The fourth proportional to 4,230.82, 5,835.72 and 2,638.18 is: 3,638.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230.82 : 5,835.72 = 2,638.18 : x
  2. Step 2: Convert to fraction form
    4,230.82/5,835.72 = 2,638.18/x
  3. Step 3: Cross multiply
    4,230.82x = 5,835.72 × 2,638.18
  4. Step 4: Simplify right side
    4,230.82x = 15,395,679.79
  5. Step 5: Solve for x
    x = 15,395,679.79/4,230.82
  6. Step 6: Final answer
    x = 3,638.94

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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.