Home / 2,861.78-4,292.09-1,675.10

Finding the Fourth Proportional to 2,861.78, 4,292.09 and 1,675.10

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Solution

The fourth proportional to 2,861.78, 4,292.09 and 1,675.10 is: 2,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.78 : 4,292.09 = 1,675.10 : x
  2. Step 2: Convert to fraction form
    2,861.78/4,292.09 = 1,675.10/x
  3. Step 3: Cross multiply
    2,861.78x = 4,292.09 × 1,675.10
  4. Step 4: Simplify right side
    2,861.78x = 7,189,694.88
  5. Step 5: Solve for x
    x = 7,189,694.88/2,861.78
  6. Step 6: Final answer
    x = 2,512.32

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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.