Home / 7,131.99-10,698.02-1,937.87

Finding the Fourth Proportional to 7,131.99, 10,698.02 and 1,937.87

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Solution

The fourth proportional to 7,131.99, 10,698.02 and 1,937.87 is: 2,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.99 : 10,698.02 = 1,937.87 : x
  2. Step 2: Convert to fraction form
    7,131.99/10,698.02 = 1,937.87/x
  3. Step 3: Cross multiply
    7,131.99x = 10,698.02 × 1,937.87
  4. Step 4: Simplify right side
    7,131.99x = 20,731,323.37
  5. Step 5: Solve for x
    x = 20,731,323.37/7,131.99
  6. Step 6: Final answer
    x = 2,906.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.