Home / 1,828.72-2,740.20-1,046.80

Finding the Fourth Proportional to 1,828.72, 2,740.20 and 1,046.80

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Solution

The fourth proportional to 1,828.72, 2,740.20 and 1,046.80 is: 1,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.72 : 2,740.20 = 1,046.80 : x
  2. Step 2: Convert to fraction form
    1,828.72/2,740.20 = 1,046.80/x
  3. Step 3: Cross multiply
    1,828.72x = 2,740.20 × 1,046.80
  4. Step 4: Simplify right side
    1,828.72x = 2,868,441.36
  5. Step 5: Solve for x
    x = 2,868,441.36/1,828.72
  6. Step 6: Final answer
    x = 1,568.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.