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Finding the Fourth Proportional to 3,945.51, 5,918.27 and 1,023.79

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Solution

The fourth proportional to 3,945.51, 5,918.27 and 1,023.79 is: 1,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.51 : 5,918.27 = 1,023.79 : x
  2. Step 2: Convert to fraction form
    3,945.51/5,918.27 = 1,023.79/x
  3. Step 3: Cross multiply
    3,945.51x = 5,918.27 × 1,023.79
  4. Step 4: Simplify right side
    3,945.51x = 6,059,056.83
  5. Step 5: Solve for x
    x = 6,059,056.83/3,945.51
  6. Step 6: Final answer
    x = 1,535.68

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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.