Home / 4,270.19-6,405.62-1,638.97

Finding the Fourth Proportional to 4,270.19, 6,405.62 and 1,638.97

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Solution

The fourth proportional to 4,270.19, 6,405.62 and 1,638.97 is: 2,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.19 : 6,405.62 = 1,638.97 : x
  2. Step 2: Convert to fraction form
    4,270.19/6,405.62 = 1,638.97/x
  3. Step 3: Cross multiply
    4,270.19x = 6,405.62 × 1,638.97
  4. Step 4: Simplify right side
    4,270.19x = 10,498,594.80
  5. Step 5: Solve for x
    x = 10,498,594.80/4,270.19
  6. Step 6: Final answer
    x = 2,458.58

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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.