Home / 5,186.99-7,158.09-2,829.12

Finding the Fourth Proportional to 5,186.99, 7,158.09 and 2,829.12

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Solution

The fourth proportional to 5,186.99, 7,158.09 and 2,829.12 is: 3,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.99 : 7,158.09 = 2,829.12 : x
  2. Step 2: Convert to fraction form
    5,186.99/7,158.09 = 2,829.12/x
  3. Step 3: Cross multiply
    5,186.99x = 7,158.09 × 2,829.12
  4. Step 4: Simplify right side
    5,186.99x = 20,251,095.58
  5. Step 5: Solve for x
    x = 20,251,095.58/5,186.99
  6. Step 6: Final answer
    x = 3,904.21

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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.