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Finding the Fourth Proportional to 5,187.56, 7,166.04 and 4,995.56

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Solution

The fourth proportional to 5,187.56, 7,166.04 and 4,995.56 is: 6,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.56 : 7,166.04 = 4,995.56 : x
  2. Step 2: Convert to fraction form
    5,187.56/7,166.04 = 4,995.56/x
  3. Step 3: Cross multiply
    5,187.56x = 7,166.04 × 4,995.56
  4. Step 4: Simplify right side
    5,187.56x = 35,798,382.78
  5. Step 5: Solve for x
    x = 35,798,382.78/5,187.56
  6. Step 6: Final answer
    x = 6,900.81

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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.