Home / 1,828.10-2,740.35-903.80

Finding the Fourth Proportional to 1,828.10, 2,740.35 and 903.80

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Solution

The fourth proportional to 1,828.10, 2,740.35 and 903.80 is: 1,354.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.10 : 2,740.35 = 903.80 : x
  2. Step 2: Convert to fraction form
    1,828.10/2,740.35 = 903.80/x
  3. Step 3: Cross multiply
    1,828.10x = 2,740.35 × 903.80
  4. Step 4: Simplify right side
    1,828.10x = 2,476,728.33
  5. Step 5: Solve for x
    x = 2,476,728.33/1,828.10
  6. Step 6: Final answer
    x = 1,354.81

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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.