Home / 1,821.08-2,519.64-1,588.64

Finding the Fourth Proportional to 1,821.08, 2,519.64 and 1,588.64

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Solution

The fourth proportional to 1,821.08, 2,519.64 and 1,588.64 is: 2,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.08 : 2,519.64 = 1,588.64 : x
  2. Step 2: Convert to fraction form
    1,821.08/2,519.64 = 1,588.64/x
  3. Step 3: Cross multiply
    1,821.08x = 2,519.64 × 1,588.64
  4. Step 4: Simplify right side
    1,821.08x = 4,002,800.89
  5. Step 5: Solve for x
    x = 4,002,800.89/1,821.08
  6. Step 6: Final answer
    x = 2,198.04

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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.