Home / 2,828.16-4,242.96-2,086.56

Finding the Fourth Proportional to 2,828.16, 4,242.96 and 2,086.56

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Solution

The fourth proportional to 2,828.16, 4,242.96 and 2,086.56 is: 3,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.16 : 4,242.96 = 2,086.56 : x
  2. Step 2: Convert to fraction form
    2,828.16/4,242.96 = 2,086.56/x
  3. Step 3: Cross multiply
    2,828.16x = 4,242.96 × 2,086.56
  4. Step 4: Simplify right side
    2,828.16x = 8,853,190.62
  5. Step 5: Solve for x
    x = 8,853,190.62/2,828.16
  6. Step 6: Final answer
    x = 3,130.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.