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Finding the Fourth Proportional to 3,852.60, 5,780.07 and 1,512.48

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Solution

The fourth proportional to 3,852.60, 5,780.07 and 1,512.48 is: 2,269.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.60 : 5,780.07 = 1,512.48 : x
  2. Step 2: Convert to fraction form
    3,852.60/5,780.07 = 1,512.48/x
  3. Step 3: Cross multiply
    3,852.60x = 5,780.07 × 1,512.48
  4. Step 4: Simplify right side
    3,852.60x = 8,742,240.27
  5. Step 5: Solve for x
    x = 8,742,240.27/3,852.60
  6. Step 6: Final answer
    x = 2,269.18

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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.