Home / 1,878.24-2,589.62-1,435.44

Finding the Fourth Proportional to 1,878.24, 2,589.62 and 1,435.44

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Solution

The fourth proportional to 1,878.24, 2,589.62 and 1,435.44 is: 1,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.24 : 2,589.62 = 1,435.44 : x
  2. Step 2: Convert to fraction form
    1,878.24/2,589.62 = 1,435.44/x
  3. Step 3: Cross multiply
    1,878.24x = 2,589.62 × 1,435.44
  4. Step 4: Simplify right side
    1,878.24x = 3,717,244.13
  5. Step 5: Solve for x
    x = 3,717,244.13/1,878.24
  6. Step 6: Final answer
    x = 1,979.11

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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.