Home / 2,021.53-3,030.75-1,815.48

Finding the Fourth Proportional to 2,021.53, 3,030.75 and 1,815.48

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Solution

The fourth proportional to 2,021.53, 3,030.75 and 1,815.48 is: 2,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.53 : 3,030.75 = 1,815.48 : x
  2. Step 2: Convert to fraction form
    2,021.53/3,030.75 = 1,815.48/x
  3. Step 3: Cross multiply
    2,021.53x = 3,030.75 × 1,815.48
  4. Step 4: Simplify right side
    2,021.53x = 5,502,266.01
  5. Step 5: Solve for x
    x = 5,502,266.01/2,021.53
  6. Step 6: Final answer
    x = 2,721.83

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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.