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Finding the Fourth Proportional to 3,783.84, 5,677.28 and 1,835.84

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Solution

The fourth proportional to 3,783.84, 5,677.28 and 1,835.84 is: 2,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.84 : 5,677.28 = 1,835.84 : x
  2. Step 2: Convert to fraction form
    3,783.84/5,677.28 = 1,835.84/x
  3. Step 3: Cross multiply
    3,783.84x = 5,677.28 × 1,835.84
  4. Step 4: Simplify right side
    3,783.84x = 10,422,577.72
  5. Step 5: Solve for x
    x = 10,422,577.72/3,783.84
  6. Step 6: Final answer
    x = 2,754.50

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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.