Home / 1,647.41-2,273.27-1,205.55

Finding the Fourth Proportional to 1,647.41, 2,273.27 and 1,205.55

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Solution

The fourth proportional to 1,647.41, 2,273.27 and 1,205.55 is: 1,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.41 : 2,273.27 = 1,205.55 : x
  2. Step 2: Convert to fraction form
    1,647.41/2,273.27 = 1,205.55/x
  3. Step 3: Cross multiply
    1,647.41x = 2,273.27 × 1,205.55
  4. Step 4: Simplify right side
    1,647.41x = 2,740,534.62
  5. Step 5: Solve for x
    x = 2,740,534.62/1,647.41
  6. Step 6: Final answer
    x = 1,663.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.