Home / 4,170.54-6,258.88-1,979.28

Finding the Fourth Proportional to 4,170.54, 6,258.88 and 1,979.28

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Solution

The fourth proportional to 4,170.54, 6,258.88 and 1,979.28 is: 2,970.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.54 : 6,258.88 = 1,979.28 : x
  2. Step 2: Convert to fraction form
    4,170.54/6,258.88 = 1,979.28/x
  3. Step 3: Cross multiply
    4,170.54x = 6,258.88 × 1,979.28
  4. Step 4: Simplify right side
    4,170.54x = 12,388,076.01
  5. Step 5: Solve for x
    x = 12,388,076.01/4,170.54
  6. Step 6: Final answer
    x = 2,970.38

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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.