Home / 3,828.30-5,283.06-2,149.74

Finding the Fourth Proportional to 3,828.30, 5,283.06 and 2,149.74

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Solution

The fourth proportional to 3,828.30, 5,283.06 and 2,149.74 is: 2,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.30 : 5,283.06 = 2,149.74 : x
  2. Step 2: Convert to fraction form
    3,828.30/5,283.06 = 2,149.74/x
  3. Step 3: Cross multiply
    3,828.30x = 5,283.06 × 2,149.74
  4. Step 4: Simplify right side
    3,828.30x = 11,357,205.40
  5. Step 5: Solve for x
    x = 11,357,205.40/3,828.30
  6. Step 6: Final answer
    x = 2,966.64

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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.