Home / 4,135.44-6,179.55-3,142.80

Finding the Fourth Proportional to 4,135.44, 6,179.55 and 3,142.80

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Solution

The fourth proportional to 4,135.44, 6,179.55 and 3,142.80 is: 4,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.44 : 6,179.55 = 3,142.80 : x
  2. Step 2: Convert to fraction form
    4,135.44/6,179.55 = 3,142.80/x
  3. Step 3: Cross multiply
    4,135.44x = 6,179.55 × 3,142.80
  4. Step 4: Simplify right side
    4,135.44x = 19,421,089.74
  5. Step 5: Solve for x
    x = 19,421,089.74/4,135.44
  6. Step 6: Final answer
    x = 4,696.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.