Home / 5,680.58-7,840.34-3,290.94

Finding the Fourth Proportional to 5,680.58, 7,840.34 and 3,290.94

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Solution

The fourth proportional to 5,680.58, 7,840.34 and 3,290.94 is: 4,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.58 : 7,840.34 = 3,290.94 : x
  2. Step 2: Convert to fraction form
    5,680.58/7,840.34 = 3,290.94/x
  3. Step 3: Cross multiply
    5,680.58x = 7,840.34 × 3,290.94
  4. Step 4: Simplify right side
    5,680.58x = 25,802,072.06
  5. Step 5: Solve for x
    x = 25,802,072.06/5,680.58
  6. Step 6: Final answer
    x = 4,542.16

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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.