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Finding the Fourth Proportional to 3,969.54, 5,955.48 and 1,777.86

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Solution

The fourth proportional to 3,969.54, 5,955.48 and 1,777.86 is: 2,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.54 : 5,955.48 = 1,777.86 : x
  2. Step 2: Convert to fraction form
    3,969.54/5,955.48 = 1,777.86/x
  3. Step 3: Cross multiply
    3,969.54x = 5,955.48 × 1,777.86
  4. Step 4: Simplify right side
    3,969.54x = 10,588,009.67
  5. Step 5: Solve for x
    x = 10,588,009.67/3,969.54
  6. Step 6: Final answer
    x = 2,667.31

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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.