Home / 5,811-8,007.98-3,711.48

Finding the Fourth Proportional to 5,811, 8,007.98 and 3,711.48

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Solution

The fourth proportional to 5,811, 8,007.98 and 3,711.48 is: 5,114.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811 : 8,007.98 = 3,711.48 : x
  2. Step 2: Convert to fraction form
    5,811/8,007.98 = 3,711.48/x
  3. Step 3: Cross multiply
    5,811x = 8,007.98 × 3,711.48
  4. Step 4: Simplify right side
    5,811x = 29,721,457.61
  5. Step 5: Solve for x
    x = 29,721,457.61/5,811
  6. Step 6: Final answer
    x = 5,114.69

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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.