Home / 1,647.41-2,276.37-1,318.55

Finding the Fourth Proportional to 1,647.41, 2,276.37 and 1,318.55

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Solution

The fourth proportional to 1,647.41, 2,276.37 and 1,318.55 is: 1,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.41 : 2,276.37 = 1,318.55 : x
  2. Step 2: Convert to fraction form
    1,647.41/2,276.37 = 1,318.55/x
  3. Step 3: Cross multiply
    1,647.41x = 2,276.37 × 1,318.55
  4. Step 4: Simplify right side
    1,647.41x = 3,001,496.28
  5. Step 5: Solve for x
    x = 3,001,496.28/1,647.41
  6. Step 6: Final answer
    x = 1,821.95

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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.