Home / 3,858.08-5,782.44-2,215.76

Finding the Fourth Proportional to 3,858.08, 5,782.44 and 2,215.76

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Solution

The fourth proportional to 3,858.08, 5,782.44 and 2,215.76 is: 3,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.08 : 5,782.44 = 2,215.76 : x
  2. Step 2: Convert to fraction form
    3,858.08/5,782.44 = 2,215.76/x
  3. Step 3: Cross multiply
    3,858.08x = 5,782.44 × 2,215.76
  4. Step 4: Simplify right side
    3,858.08x = 12,812,499.25
  5. Step 5: Solve for x
    x = 12,812,499.25/3,858.08
  6. Step 6: Final answer
    x = 3,320.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.