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Finding the Fourth Proportional to 1,745.41, 2,408.68 and 999.38

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Solution

The fourth proportional to 1,745.41, 2,408.68 and 999.38 is: 1,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.41 : 2,408.68 = 999.38 : x
  2. Step 2: Convert to fraction form
    1,745.41/2,408.68 = 999.38/x
  3. Step 3: Cross multiply
    1,745.41x = 2,408.68 × 999.38
  4. Step 4: Simplify right side
    1,745.41x = 2,407,186.62
  5. Step 5: Solve for x
    x = 2,407,186.62/1,745.41
  6. Step 6: Final answer
    x = 1,379.15

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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.