Home / 3,582.21-4,943.73-1,989.36

Finding the Fourth Proportional to 3,582.21, 4,943.73 and 1,989.36

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Solution

The fourth proportional to 3,582.21, 4,943.73 and 1,989.36 is: 2,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.21 : 4,943.73 = 1,989.36 : x
  2. Step 2: Convert to fraction form
    3,582.21/4,943.73 = 1,989.36/x
  3. Step 3: Cross multiply
    3,582.21x = 4,943.73 × 1,989.36
  4. Step 4: Simplify right side
    3,582.21x = 9,834,858.71
  5. Step 5: Solve for x
    x = 9,834,858.71/3,582.21
  6. Step 6: Final answer
    x = 2,745.47

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1.5x scale

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.