Home / 2,619.02-3,923.38-1,521.09

Finding the Fourth Proportional to 2,619.02, 3,923.38 and 1,521.09

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Solution

The fourth proportional to 2,619.02, 3,923.38 and 1,521.09 is: 2,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.02 : 3,923.38 = 1,521.09 : x
  2. Step 2: Convert to fraction form
    2,619.02/3,923.38 = 1,521.09/x
  3. Step 3: Cross multiply
    2,619.02x = 3,923.38 × 1,521.09
  4. Step 4: Simplify right side
    2,619.02x = 5,967,814.08
  5. Step 5: Solve for x
    x = 5,967,814.08/2,619.02
  6. Step 6: Final answer
    x = 2,278.64

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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.