Home / 6,112.80-8,436.07-3,460.20

Finding the Fourth Proportional to 6,112.80, 8,436.07 and 3,460.20

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Solution

The fourth proportional to 6,112.80, 8,436.07 and 3,460.20 is: 4,775.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,112.80 : 8,436.07 = 3,460.20 : x
  2. Step 2: Convert to fraction form
    6,112.80/8,436.07 = 3,460.20/x
  3. Step 3: Cross multiply
    6,112.80x = 8,436.07 × 3,460.20
  4. Step 4: Simplify right side
    6,112.80x = 29,190,489.41
  5. Step 5: Solve for x
    x = 29,190,489.41/6,112.80
  6. Step 6: Final answer
    x = 4,775.31

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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.