Home / 2,851.06-4,270.90-1,874.20

Finding the Fourth Proportional to 2,851.06, 4,270.90 and 1,874.20

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Solution

The fourth proportional to 2,851.06, 4,270.90 and 1,874.20 is: 2,807.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.06 : 4,270.90 = 1,874.20 : x
  2. Step 2: Convert to fraction form
    2,851.06/4,270.90 = 1,874.20/x
  3. Step 3: Cross multiply
    2,851.06x = 4,270.90 × 1,874.20
  4. Step 4: Simplify right side
    2,851.06x = 8,004,520.78
  5. Step 5: Solve for x
    x = 8,004,520.78/2,851.06
  6. Step 6: Final answer
    x = 2,807.56

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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.