Home / 6,729.88-9,285.78-4,077.40

Finding the Fourth Proportional to 6,729.88, 9,285.78 and 4,077.40

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Solution

The fourth proportional to 6,729.88, 9,285.78 and 4,077.40 is: 5,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,729.88 : 9,285.78 = 4,077.40 : x
  2. Step 2: Convert to fraction form
    6,729.88/9,285.78 = 4,077.40/x
  3. Step 3: Cross multiply
    6,729.88x = 9,285.78 × 4,077.40
  4. Step 4: Simplify right side
    6,729.88x = 37,861,839.37
  5. Step 5: Solve for x
    x = 37,861,839.37/6,729.88
  6. Step 6: Final answer
    x = 5,625.93

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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.