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Finding the Fourth Proportional to 4,272.78, 6,409.14 and 1,194.78

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Solution

The fourth proportional to 4,272.78, 6,409.14 and 1,194.78 is: 1,792.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.78 : 6,409.14 = 1,194.78 : x
  2. Step 2: Convert to fraction form
    4,272.78/6,409.14 = 1,194.78/x
  3. Step 3: Cross multiply
    4,272.78x = 6,409.14 × 1,194.78
  4. Step 4: Simplify right side
    4,272.78x = 7,657,512.29
  5. Step 5: Solve for x
    x = 7,657,512.29/4,272.78
  6. Step 6: Final answer
    x = 1,792.16

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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.