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Finding the Fourth Proportional to 5,448.80, 8,173.20 and 3,256.40

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Solution

The fourth proportional to 5,448.80, 8,173.20 and 3,256.40 is: 4,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,448.80 : 8,173.20 = 3,256.40 : x
  2. Step 2: Convert to fraction form
    5,448.80/8,173.20 = 3,256.40/x
  3. Step 3: Cross multiply
    5,448.80x = 8,173.20 × 3,256.40
  4. Step 4: Simplify right side
    5,448.80x = 26,615,208.48
  5. Step 5: Solve for x
    x = 26,615,208.48/5,448.80
  6. Step 6: Final answer
    x = 4,884.60

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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.