Home / 3,280.01-4,921.56-1,636.69

Finding the Fourth Proportional to 3,280.01, 4,921.56 and 1,636.69

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Solution

The fourth proportional to 3,280.01, 4,921.56 and 1,636.69 is: 2,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.01 : 4,921.56 = 1,636.69 : x
  2. Step 2: Convert to fraction form
    3,280.01/4,921.56 = 1,636.69/x
  3. Step 3: Cross multiply
    3,280.01x = 4,921.56 × 1,636.69
  4. Step 4: Simplify right side
    3,280.01x = 8,055,055.73
  5. Step 5: Solve for x
    x = 8,055,055.73/3,280.01
  6. Step 6: Final answer
    x = 2,455.80

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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.