Home / 2,108.09-2,908.35-1,269.02

Finding the Fourth Proportional to 2,108.09, 2,908.35 and 1,269.02

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Solution

The fourth proportional to 2,108.09, 2,908.35 and 1,269.02 is: 1,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.09 : 2,908.35 = 1,269.02 : x
  2. Step 2: Convert to fraction form
    2,108.09/2,908.35 = 1,269.02/x
  3. Step 3: Cross multiply
    2,108.09x = 2,908.35 × 1,269.02
  4. Step 4: Simplify right side
    2,108.09x = 3,690,754.32
  5. Step 5: Solve for x
    x = 3,690,754.32/2,108.09
  6. Step 6: Final answer
    x = 1,750.76

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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.