Home / 2,108.94-2,910.91-1,224.57

Finding the Fourth Proportional to 2,108.94, 2,910.91 and 1,224.57

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Solution

The fourth proportional to 2,108.94, 2,910.91 and 1,224.57 is: 1,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.94 : 2,910.91 = 1,224.57 : x
  2. Step 2: Convert to fraction form
    2,108.94/2,910.91 = 1,224.57/x
  3. Step 3: Cross multiply
    2,108.94x = 2,910.91 × 1,224.57
  4. Step 4: Simplify right side
    2,108.94x = 3,564,613.06
  5. Step 5: Solve for x
    x = 3,564,613.06/2,108.94
  6. Step 6: Final answer
    x = 1,690.24

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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.