Home / 4,091.42-6,129.42-2,420.58

Finding the Fourth Proportional to 4,091.42, 6,129.42 and 2,420.58

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Solution

The fourth proportional to 4,091.42, 6,129.42 and 2,420.58 is: 3,626.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.42 : 6,129.42 = 2,420.58 : x
  2. Step 2: Convert to fraction form
    4,091.42/6,129.42 = 2,420.58/x
  3. Step 3: Cross multiply
    4,091.42x = 6,129.42 × 2,420.58
  4. Step 4: Simplify right side
    4,091.42x = 14,836,751.46
  5. Step 5: Solve for x
    x = 14,836,751.46/4,091.42
  6. Step 6: Final answer
    x = 3,626.31

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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.