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Finding the Fourth Proportional to 1,845.80, 2,771.90 and 1,301.80

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Solution

The fourth proportional to 1,845.80, 2,771.90 and 1,301.80 is: 1,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.80 : 2,771.90 = 1,301.80 : x
  2. Step 2: Convert to fraction form
    1,845.80/2,771.90 = 1,301.80/x
  3. Step 3: Cross multiply
    1,845.80x = 2,771.90 × 1,301.80
  4. Step 4: Simplify right side
    1,845.80x = 3,608,459.42
  5. Step 5: Solve for x
    x = 3,608,459.42/1,845.80
  6. Step 6: Final answer
    x = 1,954.96

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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.