Home / 6,728.13-9,285.26-4,075.79

Finding the Fourth Proportional to 6,728.13, 9,285.26 and 4,075.79

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Solution

The fourth proportional to 6,728.13, 9,285.26 and 4,075.79 is: 5,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.13 : 9,285.26 = 4,075.79 : x
  2. Step 2: Convert to fraction form
    6,728.13/9,285.26 = 4,075.79/x
  3. Step 3: Cross multiply
    6,728.13x = 9,285.26 × 4,075.79
  4. Step 4: Simplify right side
    6,728.13x = 37,844,703.05
  5. Step 5: Solve for x
    x = 37,844,703.05/6,728.13
  6. Step 6: Final answer
    x = 5,624.85

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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.