Home / 3,802.20-5,239.24-2,805.92

Finding the Fourth Proportional to 3,802.20, 5,239.24 and 2,805.92

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Solution

The fourth proportional to 3,802.20, 5,239.24 and 2,805.92 is: 3,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.20 : 5,239.24 = 2,805.92 : x
  2. Step 2: Convert to fraction form
    3,802.20/5,239.24 = 2,805.92/x
  3. Step 3: Cross multiply
    3,802.20x = 5,239.24 × 2,805.92
  4. Step 4: Simplify right side
    3,802.20x = 14,700,888.30
  5. Step 5: Solve for x
    x = 14,700,888.30/3,802.20
  6. Step 6: Final answer
    x = 3,866.42

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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.