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Finding the Fourth Proportional to 3,787.05, 5,681.84 and 1,937.67

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Solution

The fourth proportional to 3,787.05, 5,681.84 and 1,937.67 is: 2,907.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.05 : 5,681.84 = 1,937.67 : x
  2. Step 2: Convert to fraction form
    3,787.05/5,681.84 = 1,937.67/x
  3. Step 3: Cross multiply
    3,787.05x = 5,681.84 × 1,937.67
  4. Step 4: Simplify right side
    3,787.05x = 11,009,492.82
  5. Step 5: Solve for x
    x = 11,009,492.82/3,787.05
  6. Step 6: Final answer
    x = 2,907.14

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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.