Home / 7,334.09-10,121.06-4,190.21

Finding the Fourth Proportional to 7,334.09, 10,121.06 and 4,190.21

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Solution

The fourth proportional to 7,334.09, 10,121.06 and 4,190.21 is: 5,782.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.09 : 10,121.06 = 4,190.21 : x
  2. Step 2: Convert to fraction form
    7,334.09/10,121.06 = 4,190.21/x
  3. Step 3: Cross multiply
    7,334.09x = 10,121.06 × 4,190.21
  4. Step 4: Simplify right side
    7,334.09x = 42,409,366.82
  5. Step 5: Solve for x
    x = 42,409,366.82/7,334.09
  6. Step 6: Final answer
    x = 5,782.50

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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.