Home / 2,778.10-3,832.90-1,674.10

Finding the Fourth Proportional to 2,778.10, 3,832.90 and 1,674.10

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Solution

The fourth proportional to 2,778.10, 3,832.90 and 1,674.10 is: 2,309.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.10 : 3,832.90 = 1,674.10 : x
  2. Step 2: Convert to fraction form
    2,778.10/3,832.90 = 1,674.10/x
  3. Step 3: Cross multiply
    2,778.10x = 3,832.90 × 1,674.10
  4. Step 4: Simplify right side
    2,778.10x = 6,416,657.89
  5. Step 5: Solve for x
    x = 6,416,657.89/2,778.10
  6. Step 6: Final answer
    x = 2,309.73

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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.