Home / 7,405.75-11,108.63-1,933.75

Finding the Fourth Proportional to 7,405.75, 11,108.63 and 1,933.75

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Solution

The fourth proportional to 7,405.75, 11,108.63 and 1,933.75 is: 2,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.75 : 11,108.63 = 1,933.75 : x
  2. Step 2: Convert to fraction form
    7,405.75/11,108.63 = 1,933.75/x
  3. Step 3: Cross multiply
    7,405.75x = 11,108.63 × 1,933.75
  4. Step 4: Simplify right side
    7,405.75x = 21,481,313.26
  5. Step 5: Solve for x
    x = 21,481,313.26/7,405.75
  6. Step 6: Final answer
    x = 2,900.63

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1.5x scale

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.