Home / 4,239.26-5,855.09-2,820.50

Finding the Fourth Proportional to 4,239.26, 5,855.09 and 2,820.50

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Solution

The fourth proportional to 4,239.26, 5,855.09 and 2,820.50 is: 3,895.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.26 : 5,855.09 = 2,820.50 : x
  2. Step 2: Convert to fraction form
    4,239.26/5,855.09 = 2,820.50/x
  3. Step 3: Cross multiply
    4,239.26x = 5,855.09 × 2,820.50
  4. Step 4: Simplify right side
    4,239.26x = 16,514,281.35
  5. Step 5: Solve for x
    x = 16,514,281.35/4,239.26
  6. Step 6: Final answer
    x = 3,895.56

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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.