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Finding the Fourth Proportional to 3,055.28, 4,582.86 and 746.78

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Solution

The fourth proportional to 3,055.28, 4,582.86 and 746.78 is: 1,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.28 : 4,582.86 = 746.78 : x
  2. Step 2: Convert to fraction form
    3,055.28/4,582.86 = 746.78/x
  3. Step 3: Cross multiply
    3,055.28x = 4,582.86 × 746.78
  4. Step 4: Simplify right side
    3,055.28x = 3,422,388.19
  5. Step 5: Solve for x
    x = 3,422,388.19/3,055.28
  6. Step 6: Final answer
    x = 1,120.16

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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.