Home / 4,945.21-7,420.73-1,827.42

Finding the Fourth Proportional to 4,945.21, 7,420.73 and 1,827.42

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Solution

The fourth proportional to 4,945.21, 7,420.73 and 1,827.42 is: 2,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.21 : 7,420.73 = 1,827.42 : x
  2. Step 2: Convert to fraction form
    4,945.21/7,420.73 = 1,827.42/x
  3. Step 3: Cross multiply
    4,945.21x = 7,420.73 × 1,827.42
  4. Step 4: Simplify right side
    4,945.21x = 13,560,767.16
  5. Step 5: Solve for x
    x = 13,560,767.16/4,945.21
  6. Step 6: Final answer
    x = 2,742.20

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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.