Home / 3,582.70-4,943.51-1,989.09

Finding the Fourth Proportional to 3,582.70, 4,943.51 and 1,989.09

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Solution

The fourth proportional to 3,582.70, 4,943.51 and 1,989.09 is: 2,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.70 : 4,943.51 = 1,989.09 : x
  2. Step 2: Convert to fraction form
    3,582.70/4,943.51 = 1,989.09/x
  3. Step 3: Cross multiply
    3,582.70x = 4,943.51 × 1,989.09
  4. Step 4: Simplify right side
    3,582.70x = 9,833,083.82
  5. Step 5: Solve for x
    x = 9,833,083.82/3,582.70
  6. Step 6: Final answer
    x = 2,744.60

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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.