Home / 3,842.20-5,303.46-2,513.80

Finding the Fourth Proportional to 3,842.20, 5,303.46 and 2,513.80

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Solution

The fourth proportional to 3,842.20, 5,303.46 and 2,513.80 is: 3,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.20 : 5,303.46 = 2,513.80 : x
  2. Step 2: Convert to fraction form
    3,842.20/5,303.46 = 2,513.80/x
  3. Step 3: Cross multiply
    3,842.20x = 5,303.46 × 2,513.80
  4. Step 4: Simplify right side
    3,842.20x = 13,331,837.75
  5. Step 5: Solve for x
    x = 13,331,837.75/3,842.20
  6. Step 6: Final answer
    x = 3,469.84

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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.