Home / 3,785.30-5,220.75-2,459.43

Finding the Fourth Proportional to 3,785.30, 5,220.75 and 2,459.43

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Solution

The fourth proportional to 3,785.30, 5,220.75 and 2,459.43 is: 3,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.30 : 5,220.75 = 2,459.43 : x
  2. Step 2: Convert to fraction form
    3,785.30/5,220.75 = 2,459.43/x
  3. Step 3: Cross multiply
    3,785.30x = 5,220.75 × 2,459.43
  4. Step 4: Simplify right side
    3,785.30x = 12,840,078.40
  5. Step 5: Solve for x
    x = 12,840,078.40/3,785.30
  6. Step 6: Final answer
    x = 3,392.09

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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.