Home / 5,112.94-7,055.22-2,874.55

Finding the Fourth Proportional to 5,112.94, 7,055.22 and 2,874.55

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Solution

The fourth proportional to 5,112.94, 7,055.22 and 2,874.55 is: 3,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.94 : 7,055.22 = 2,874.55 : x
  2. Step 2: Convert to fraction form
    5,112.94/7,055.22 = 2,874.55/x
  3. Step 3: Cross multiply
    5,112.94x = 7,055.22 × 2,874.55
  4. Step 4: Simplify right side
    5,112.94x = 20,280,582.65
  5. Step 5: Solve for x
    x = 20,280,582.65/5,112.94
  6. Step 6: Final answer
    x = 3,966.52

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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.