Home / 3,115.80-4,270.59-3,094.20

Finding the Fourth Proportional to 3,115.80, 4,270.59 and 3,094.20

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Solution

The fourth proportional to 3,115.80, 4,270.59 and 3,094.20 is: 4,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.80 : 4,270.59 = 3,094.20 : x
  2. Step 2: Convert to fraction form
    3,115.80/4,270.59 = 3,094.20/x
  3. Step 3: Cross multiply
    3,115.80x = 4,270.59 × 3,094.20
  4. Step 4: Simplify right side
    3,115.80x = 13,214,059.58
  5. Step 5: Solve for x
    x = 13,214,059.58/3,115.80
  6. Step 6: Final answer
    x = 4,240.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.