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Finding the Fourth Proportional to 3,607.87, 5,408.72 and 1,852.80

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Solution

The fourth proportional to 3,607.87, 5,408.72 and 1,852.80 is: 2,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.87 : 5,408.72 = 1,852.80 : x
  2. Step 2: Convert to fraction form
    3,607.87/5,408.72 = 1,852.80/x
  3. Step 3: Cross multiply
    3,607.87x = 5,408.72 × 1,852.80
  4. Step 4: Simplify right side
    3,607.87x = 10,021,279.45
  5. Step 5: Solve for x
    x = 10,021,279.45/3,607.87
  6. Step 6: Final answer
    x = 2,777.62

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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.