Home / 4,186.90-6,280.35-4,122.10

Finding the Fourth Proportional to 4,186.90, 6,280.35 and 4,122.10

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Solution

The fourth proportional to 4,186.90, 6,280.35 and 4,122.10 is: 6,183.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.90 : 6,280.35 = 4,122.10 : x
  2. Step 2: Convert to fraction form
    4,186.90/6,280.35 = 4,122.10/x
  3. Step 3: Cross multiply
    4,186.90x = 6,280.35 × 4,122.10
  4. Step 4: Simplify right side
    4,186.90x = 25,888,230.74
  5. Step 5: Solve for x
    x = 25,888,230.74/4,186.90
  6. Step 6: Final answer
    x = 6,183.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.