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Finding the Fourth Proportional to 4,777.22, 7,169.08 and 1,855.14

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Solution

The fourth proportional to 4,777.22, 7,169.08 and 1,855.14 is: 2,783.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.22 : 7,169.08 = 1,855.14 : x
  2. Step 2: Convert to fraction form
    4,777.22/7,169.08 = 1,855.14/x
  3. Step 3: Cross multiply
    4,777.22x = 7,169.08 × 1,855.14
  4. Step 4: Simplify right side
    4,777.22x = 13,299,647.07
  5. Step 5: Solve for x
    x = 13,299,647.07/4,777.22
  6. Step 6: Final answer
    x = 2,783.97

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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.