Home / 5,186.69-7,157.60-2,828.82

Finding the Fourth Proportional to 5,186.69, 7,157.60 and 2,828.82

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Solution

The fourth proportional to 5,186.69, 7,157.60 and 2,828.82 is: 3,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.69 : 7,157.60 = 2,828.82 : x
  2. Step 2: Convert to fraction form
    5,186.69/7,157.60 = 2,828.82/x
  3. Step 3: Cross multiply
    5,186.69x = 7,157.60 × 2,828.82
  4. Step 4: Simplify right side
    5,186.69x = 20,247,569.10
  5. Step 5: Solve for x
    x = 20,247,569.10/5,186.69
  6. Step 6: Final answer
    x = 3,903.76

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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.