Home / 4,129.78-5,698.56-2,361.50

Finding the Fourth Proportional to 4,129.78, 5,698.56 and 2,361.50

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Solution

The fourth proportional to 4,129.78, 5,698.56 and 2,361.50 is: 3,258.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.78 : 5,698.56 = 2,361.50 : x
  2. Step 2: Convert to fraction form
    4,129.78/5,698.56 = 2,361.50/x
  3. Step 3: Cross multiply
    4,129.78x = 5,698.56 × 2,361.50
  4. Step 4: Simplify right side
    4,129.78x = 13,457,149.44
  5. Step 5: Solve for x
    x = 13,457,149.44/4,129.78
  6. Step 6: Final answer
    x = 3,258.56

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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.