Home / 2,778.08-4,162.33-1,840.43

Finding the Fourth Proportional to 2,778.08, 4,162.33 and 1,840.43

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Solution

The fourth proportional to 2,778.08, 4,162.33 and 1,840.43 is: 2,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.08 : 4,162.33 = 1,840.43 : x
  2. Step 2: Convert to fraction form
    2,778.08/4,162.33 = 1,840.43/x
  3. Step 3: Cross multiply
    2,778.08x = 4,162.33 × 1,840.43
  4. Step 4: Simplify right side
    2,778.08x = 7,660,482.81
  5. Step 5: Solve for x
    x = 7,660,482.81/2,778.08
  6. Step 6: Final answer
    x = 2,757.48

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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.