Home / 3,322.40-4,977.45-1,936.40

Finding the Fourth Proportional to 3,322.40, 4,977.45 and 1,936.40

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Solution

The fourth proportional to 3,322.40, 4,977.45 and 1,936.40 is: 2,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.40 : 4,977.45 = 1,936.40 : x
  2. Step 2: Convert to fraction form
    3,322.40/4,977.45 = 1,936.40/x
  3. Step 3: Cross multiply
    3,322.40x = 4,977.45 × 1,936.40
  4. Step 4: Simplify right side
    3,322.40x = 9,638,334.18
  5. Step 5: Solve for x
    x = 9,638,334.18/3,322.40
  6. Step 6: Final answer
    x = 2,901.02

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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.