Home / 7,105.02-9,804.82-4,121.36

Finding the Fourth Proportional to 7,105.02, 9,804.82 and 4,121.36

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Solution

The fourth proportional to 7,105.02, 9,804.82 and 4,121.36 is: 5,687.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.02 : 9,804.82 = 4,121.36 : x
  2. Step 2: Convert to fraction form
    7,105.02/9,804.82 = 4,121.36/x
  3. Step 3: Cross multiply
    7,105.02x = 9,804.82 × 4,121.36
  4. Step 4: Simplify right side
    7,105.02x = 40,409,162.14
  5. Step 5: Solve for x
    x = 40,409,162.14/7,105.02
  6. Step 6: Final answer
    x = 5,687.41

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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.