Home / 3,828.37-5,283.15-2,149.93

Finding the Fourth Proportional to 3,828.37, 5,283.15 and 2,149.93

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Solution

The fourth proportional to 3,828.37, 5,283.15 and 2,149.93 is: 2,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.37 : 5,283.15 = 2,149.93 : x
  2. Step 2: Convert to fraction form
    3,828.37/5,283.15 = 2,149.93/x
  3. Step 3: Cross multiply
    3,828.37x = 5,283.15 × 2,149.93
  4. Step 4: Simplify right side
    3,828.37x = 11,358,402.68
  5. Step 5: Solve for x
    x = 11,358,402.68/3,828.37
  6. Step 6: Final answer
    x = 2,966.90

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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.