Home / 3,780.16-5,202.30-3,114.40

Finding the Fourth Proportional to 3,780.16, 5,202.30 and 3,114.40

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Solution

The fourth proportional to 3,780.16, 5,202.30 and 3,114.40 is: 4,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.16 : 5,202.30 = 3,114.40 : x
  2. Step 2: Convert to fraction form
    3,780.16/5,202.30 = 3,114.40/x
  3. Step 3: Cross multiply
    3,780.16x = 5,202.30 × 3,114.40
  4. Step 4: Simplify right side
    3,780.16x = 16,202,043.12
  5. Step 5: Solve for x
    x = 16,202,043.12/3,780.16
  6. Step 6: Final answer
    x = 4,286.07

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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.