Home / 2,205.20-3,040.45-1,784

Finding the Fourth Proportional to 2,205.20, 3,040.45 and 1,784

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Solution

The fourth proportional to 2,205.20, 3,040.45 and 1,784 is: 2,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.20 : 3,040.45 = 1,784 : x
  2. Step 2: Convert to fraction form
    2,205.20/3,040.45 = 1,784/x
  3. Step 3: Cross multiply
    2,205.20x = 3,040.45 × 1,784
  4. Step 4: Simplify right side
    2,205.20x = 5,424,162.80
  5. Step 5: Solve for x
    x = 5,424,162.80/2,205.20
  6. Step 6: Final answer
    x = 2,459.71

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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.