Home / 3,828.76-5,285.03-2,256.75

Finding the Fourth Proportional to 3,828.76, 5,285.03 and 2,256.75

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Solution

The fourth proportional to 3,828.76, 5,285.03 and 2,256.75 is: 3,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.76 : 5,285.03 = 2,256.75 : x
  2. Step 2: Convert to fraction form
    3,828.76/5,285.03 = 2,256.75/x
  3. Step 3: Cross multiply
    3,828.76x = 5,285.03 × 2,256.75
  4. Step 4: Simplify right side
    3,828.76x = 11,926,980.17
  5. Step 5: Solve for x
    x = 11,926,980.17/3,828.76
  6. Step 6: Final answer
    x = 3,115.10

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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.