Home / 4,128.90-6,193.27-1,663.65

Finding the Fourth Proportional to 4,128.90, 6,193.27 and 1,663.65

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Solution

The fourth proportional to 4,128.90, 6,193.27 and 1,663.65 is: 2,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.90 : 6,193.27 = 1,663.65 : x
  2. Step 2: Convert to fraction form
    4,128.90/6,193.27 = 1,663.65/x
  3. Step 3: Cross multiply
    4,128.90x = 6,193.27 × 1,663.65
  4. Step 4: Simplify right side
    4,128.90x = 10,303,433.64
  5. Step 5: Solve for x
    x = 10,303,433.64/4,128.90
  6. Step 6: Final answer
    x = 2,495.44

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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.