Home / 5,401.64-8,102.14-1,938.44

Finding the Fourth Proportional to 5,401.64, 8,102.14 and 1,938.44

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Solution

The fourth proportional to 5,401.64, 8,102.14 and 1,938.44 is: 2,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.64 : 8,102.14 = 1,938.44 : x
  2. Step 2: Convert to fraction form
    5,401.64/8,102.14 = 1,938.44/x
  3. Step 3: Cross multiply
    5,401.64x = 8,102.14 × 1,938.44
  4. Step 4: Simplify right side
    5,401.64x = 15,705,512.26
  5. Step 5: Solve for x
    x = 15,705,512.26/5,401.64
  6. Step 6: Final answer
    x = 2,907.55

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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.