Home / 2,908.07-4,013.52-1,729.79

Finding the Fourth Proportional to 2,908.07, 4,013.52 and 1,729.79

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Solution

The fourth proportional to 2,908.07, 4,013.52 and 1,729.79 is: 2,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.07 : 4,013.52 = 1,729.79 : x
  2. Step 2: Convert to fraction form
    2,908.07/4,013.52 = 1,729.79/x
  3. Step 3: Cross multiply
    2,908.07x = 4,013.52 × 1,729.79
  4. Step 4: Simplify right side
    2,908.07x = 6,942,546.76
  5. Step 5: Solve for x
    x = 6,942,546.76/2,908.07
  6. Step 6: Final answer
    x = 2,387.34

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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.