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Finding the Fourth Proportional to 2,477.50, 3,716.56 and 917.24

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Solution

The fourth proportional to 2,477.50, 3,716.56 and 917.24 is: 1,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.50 : 3,716.56 = 917.24 : x
  2. Step 2: Convert to fraction form
    2,477.50/3,716.56 = 917.24/x
  3. Step 3: Cross multiply
    2,477.50x = 3,716.56 × 917.24
  4. Step 4: Simplify right side
    2,477.50x = 3,408,977.49
  5. Step 5: Solve for x
    x = 3,408,977.49/2,477.50
  6. Step 6: Final answer
    x = 1,375.97

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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.