Home / 4,428.90-6,640.27-1,962.39

Finding the Fourth Proportional to 4,428.90, 6,640.27 and 1,962.39

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Solution

The fourth proportional to 4,428.90, 6,640.27 and 1,962.39 is: 2,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.90 : 6,640.27 = 1,962.39 : x
  2. Step 2: Convert to fraction form
    4,428.90/6,640.27 = 1,962.39/x
  3. Step 3: Cross multiply
    4,428.90x = 6,640.27 × 1,962.39
  4. Step 4: Simplify right side
    4,428.90x = 13,030,756.43
  5. Step 5: Solve for x
    x = 13,030,756.43/4,428.90
  6. Step 6: Final answer
    x = 2,942.21

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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.