Home / 3,828.16-5,282.51-2,149.64

Finding the Fourth Proportional to 3,828.16, 5,282.51 and 2,149.64

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Solution

The fourth proportional to 3,828.16, 5,282.51 and 2,149.64 is: 2,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.16 : 5,282.51 = 2,149.64 : x
  2. Step 2: Convert to fraction form
    3,828.16/5,282.51 = 2,149.64/x
  3. Step 3: Cross multiply
    3,828.16x = 5,282.51 × 2,149.64
  4. Step 4: Simplify right side
    3,828.16x = 11,355,457.64
  5. Step 5: Solve for x
    x = 11,355,457.64/3,828.16
  6. Step 6: Final answer
    x = 2,966.30

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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.