Home / 3,823.61-5,276.06-2,122.09

Finding the Fourth Proportional to 3,823.61, 5,276.06 and 2,122.09

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Solution

The fourth proportional to 3,823.61, 5,276.06 and 2,122.09 is: 2,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,823.61 : 5,276.06 = 2,122.09 : x
  2. Step 2: Convert to fraction form
    3,823.61/5,276.06 = 2,122.09/x
  3. Step 3: Cross multiply
    3,823.61x = 5,276.06 × 2,122.09
  4. Step 4: Simplify right side
    3,823.61x = 11,196,266.28
  5. Step 5: Solve for x
    x = 11,196,266.28/3,823.61
  6. Step 6: Final answer
    x = 2,928.20

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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.