Home / 3,787.21-5,219.78-3,568.51

Finding the Fourth Proportional to 3,787.21, 5,219.78 and 3,568.51

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Solution

The fourth proportional to 3,787.21, 5,219.78 and 3,568.51 is: 4,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.21 : 5,219.78 = 3,568.51 : x
  2. Step 2: Convert to fraction form
    3,787.21/5,219.78 = 3,568.51/x
  3. Step 3: Cross multiply
    3,787.21x = 5,219.78 × 3,568.51
  4. Step 4: Simplify right side
    3,787.21x = 18,626,837.13
  5. Step 5: Solve for x
    x = 18,626,837.13/3,787.21
  6. Step 6: Final answer
    x = 4,918.35

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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.