Home / 2,208.75-3,047.20-1,423.25

Finding the Fourth Proportional to 2,208.75, 3,047.20 and 1,423.25

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Solution

The fourth proportional to 2,208.75, 3,047.20 and 1,423.25 is: 1,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.75 : 3,047.20 = 1,423.25 : x
  2. Step 2: Convert to fraction form
    2,208.75/3,047.20 = 1,423.25/x
  3. Step 3: Cross multiply
    2,208.75x = 3,047.20 × 1,423.25
  4. Step 4: Simplify right side
    2,208.75x = 4,336,920.28
  5. Step 5: Solve for x
    x = 4,336,920.28/2,208.75
  6. Step 6: Final answer
    x = 1,963.52

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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.