Home / 2,205.21-3,043.28-1,210.52

Finding the Fourth Proportional to 2,205.21, 3,043.28 and 1,210.52

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Solution

The fourth proportional to 2,205.21, 3,043.28 and 1,210.52 is: 1,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.21 : 3,043.28 = 1,210.52 : x
  2. Step 2: Convert to fraction form
    2,205.21/3,043.28 = 1,210.52/x
  3. Step 3: Cross multiply
    2,205.21x = 3,043.28 × 1,210.52
  4. Step 4: Simplify right side
    2,205.21x = 3,683,930.04
  5. Step 5: Solve for x
    x = 3,683,930.04/2,205.21
  6. Step 6: Final answer
    x = 1,670.56

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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.