Home / 5,186.13-7,156.86-2,828.25

Finding the Fourth Proportional to 5,186.13, 7,156.86 and 2,828.25

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Solution

The fourth proportional to 5,186.13, 7,156.86 and 2,828.25 is: 3,902.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.13 : 7,156.86 = 2,828.25 : x
  2. Step 2: Convert to fraction form
    5,186.13/7,156.86 = 2,828.25/x
  3. Step 3: Cross multiply
    5,186.13x = 7,156.86 × 2,828.25
  4. Step 4: Simplify right side
    5,186.13x = 20,241,389.30
  5. Step 5: Solve for x
    x = 20,241,389.30/5,186.13
  6. Step 6: Final answer
    x = 3,902.99

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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.