Home / 4,084.63-6,128.97-1,620.07

Finding the Fourth Proportional to 4,084.63, 6,128.97 and 1,620.07

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Solution

The fourth proportional to 4,084.63, 6,128.97 and 1,620.07 is: 2,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.63 : 6,128.97 = 1,620.07 : x
  2. Step 2: Convert to fraction form
    4,084.63/6,128.97 = 1,620.07/x
  3. Step 3: Cross multiply
    4,084.63x = 6,128.97 × 1,620.07
  4. Step 4: Simplify right side
    4,084.63x = 9,929,360.43
  5. Step 5: Solve for x
    x = 9,929,360.43/4,084.63
  6. Step 6: Final answer
    x = 2,430.91

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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.