Home / 2,589.96-3,578.32-1,807.50

Finding the Fourth Proportional to 2,589.96, 3,578.32 and 1,807.50

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Solution

The fourth proportional to 2,589.96, 3,578.32 and 1,807.50 is: 2,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.96 : 3,578.32 = 1,807.50 : x
  2. Step 2: Convert to fraction form
    2,589.96/3,578.32 = 1,807.50/x
  3. Step 3: Cross multiply
    2,589.96x = 3,578.32 × 1,807.50
  4. Step 4: Simplify right side
    2,589.96x = 6,467,813.40
  5. Step 5: Solve for x
    x = 6,467,813.40/2,589.96
  6. Step 6: Final answer
    x = 2,497.26

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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.