Home / 4,242.75-5,855.54-2,379.75

Finding the Fourth Proportional to 4,242.75, 5,855.54 and 2,379.75

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Solution

The fourth proportional to 4,242.75, 5,855.54 and 2,379.75 is: 3,284.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.75 : 5,855.54 = 2,379.75 : x
  2. Step 2: Convert to fraction form
    4,242.75/5,855.54 = 2,379.75/x
  3. Step 3: Cross multiply
    4,242.75x = 5,855.54 × 2,379.75
  4. Step 4: Simplify right side
    4,242.75x = 13,934,709.42
  5. Step 5: Solve for x
    x = 13,934,709.42/4,242.75
  6. Step 6: Final answer
    x = 3,284.36

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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.