Home / 2,205.52-3,043.62-1,210.80

Finding the Fourth Proportional to 2,205.52, 3,043.62 and 1,210.80

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Solution

The fourth proportional to 2,205.52, 3,043.62 and 1,210.80 is: 1,670.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.52 : 3,043.62 = 1,210.80 : x
  2. Step 2: Convert to fraction form
    2,205.52/3,043.62 = 1,210.80/x
  3. Step 3: Cross multiply
    2,205.52x = 3,043.62 × 1,210.80
  4. Step 4: Simplify right side
    2,205.52x = 3,685,215.10
  5. Step 5: Solve for x
    x = 3,685,215.10/2,205.52
  6. Step 6: Final answer
    x = 1,670.91

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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.