Home / 6,619.12-9,128.43-4,348.42

Finding the Fourth Proportional to 6,619.12, 9,128.43 and 4,348.42

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Solution

The fourth proportional to 6,619.12, 9,128.43 and 4,348.42 is: 5,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.12 : 9,128.43 = 4,348.42 : x
  2. Step 2: Convert to fraction form
    6,619.12/9,128.43 = 4,348.42/x
  3. Step 3: Cross multiply
    6,619.12x = 9,128.43 × 4,348.42
  4. Step 4: Simplify right side
    6,619.12x = 39,694,224.76
  5. Step 5: Solve for x
    x = 39,694,224.76/6,619.12
  6. Step 6: Final answer
    x = 5,996.91

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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.