Home / 4,076.40-6,109.26-2,100.30

Finding the Fourth Proportional to 4,076.40, 6,109.26 and 2,100.30

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Solution

The fourth proportional to 4,076.40, 6,109.26 and 2,100.30 is: 3,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,076.40 : 6,109.26 = 2,100.30 : x
  2. Step 2: Convert to fraction form
    4,076.40/6,109.26 = 2,100.30/x
  3. Step 3: Cross multiply
    4,076.40x = 6,109.26 × 2,100.30
  4. Step 4: Simplify right side
    4,076.40x = 12,831,278.78
  5. Step 5: Solve for x
    x = 12,831,278.78/4,076.40
  6. Step 6: Final answer
    x = 3,147.70

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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.