Home / 3,580.75-4,938.91-3,107.71

Finding the Fourth Proportional to 3,580.75, 4,938.91 and 3,107.71

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Solution

The fourth proportional to 3,580.75, 4,938.91 and 3,107.71 is: 4,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.75 : 4,938.91 = 3,107.71 : x
  2. Step 2: Convert to fraction form
    3,580.75/4,938.91 = 3,107.71/x
  3. Step 3: Cross multiply
    3,580.75x = 4,938.91 × 3,107.71
  4. Step 4: Simplify right side
    3,580.75x = 15,348,700.00
  5. Step 5: Solve for x
    x = 15,348,700.00/3,580.75
  6. Step 6: Final answer
    x = 4,286.45

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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.