Home / 4,191.60-5,786.46-2,620.20

Finding the Fourth Proportional to 4,191.60, 5,786.46 and 2,620.20

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Solution

The fourth proportional to 4,191.60, 5,786.46 and 2,620.20 is: 3,617.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.60 : 5,786.46 = 2,620.20 : x
  2. Step 2: Convert to fraction form
    4,191.60/5,786.46 = 2,620.20/x
  3. Step 3: Cross multiply
    4,191.60x = 5,786.46 × 2,620.20
  4. Step 4: Simplify right side
    4,191.60x = 15,161,682.49
  5. Step 5: Solve for x
    x = 15,161,682.49/4,191.60
  6. Step 6: Final answer
    x = 3,617.16

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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.