Home / 2,908.28-4,013.80-1,729.36

Finding the Fourth Proportional to 2,908.28, 4,013.80 and 1,729.36

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Solution

The fourth proportional to 2,908.28, 4,013.80 and 1,729.36 is: 2,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.28 : 4,013.80 = 1,729.36 : x
  2. Step 2: Convert to fraction form
    2,908.28/4,013.80 = 1,729.36/x
  3. Step 3: Cross multiply
    2,908.28x = 4,013.80 × 1,729.36
  4. Step 4: Simplify right side
    2,908.28x = 6,941,305.17
  5. Step 5: Solve for x
    x = 6,941,305.17/2,908.28
  6. Step 6: Final answer
    x = 2,386.74

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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.