Home / 5,133.63-7,084.42-2,775.78

Finding the Fourth Proportional to 5,133.63, 7,084.42 and 2,775.78

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Solution

The fourth proportional to 5,133.63, 7,084.42 and 2,775.78 is: 3,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.63 : 7,084.42 = 2,775.78 : x
  2. Step 2: Convert to fraction form
    5,133.63/7,084.42 = 2,775.78/x
  3. Step 3: Cross multiply
    5,133.63x = 7,084.42 × 2,775.78
  4. Step 4: Simplify right side
    5,133.63x = 19,664,791.35
  5. Step 5: Solve for x
    x = 19,664,791.35/5,133.63
  6. Step 6: Final answer
    x = 3,830.58

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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.