Home / 3,883.64-5,359.14-2,391.21

Finding the Fourth Proportional to 3,883.64, 5,359.14 and 2,391.21

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Solution

The fourth proportional to 3,883.64, 5,359.14 and 2,391.21 is: 3,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.64 : 5,359.14 = 2,391.21 : x
  2. Step 2: Convert to fraction form
    3,883.64/5,359.14 = 2,391.21/x
  3. Step 3: Cross multiply
    3,883.64x = 5,359.14 × 2,391.21
  4. Step 4: Simplify right side
    3,883.64x = 12,814,829.16
  5. Step 5: Solve for x
    x = 12,814,829.16/3,883.64
  6. Step 6: Final answer
    x = 3,299.70

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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.