Home / 5,456.40-8,173.80-3,258.60

Finding the Fourth Proportional to 5,456.40, 8,173.80 and 3,258.60

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Solution

The fourth proportional to 5,456.40, 8,173.80 and 3,258.60 is: 4,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.40 : 8,173.80 = 3,258.60 : x
  2. Step 2: Convert to fraction form
    5,456.40/8,173.80 = 3,258.60/x
  3. Step 3: Cross multiply
    5,456.40x = 8,173.80 × 3,258.60
  4. Step 4: Simplify right side
    5,456.40x = 26,635,144.68
  5. Step 5: Solve for x
    x = 26,635,144.68/5,456.40
  6. Step 6: Final answer
    x = 4,881.45

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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.