Home / 3,823.91-5,276.37-2,145.08

Finding the Fourth Proportional to 3,823.91, 5,276.37 and 2,145.08

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Solution

The fourth proportional to 3,823.91, 5,276.37 and 2,145.08 is: 2,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.91 : 5,276.37 = 2,145.08 : x
  2. Step 2: Convert to fraction form
    3,823.91/5,276.37 = 2,145.08/x
  3. Step 3: Cross multiply
    3,823.91x = 5,276.37 × 2,145.08
  4. Step 4: Simplify right side
    3,823.91x = 11,318,256.99
  5. Step 5: Solve for x
    x = 11,318,256.99/3,823.91
  6. Step 6: Final answer
    x = 2,959.87

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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.