Home / 4,129.85-5,699.36-2,361.45

Finding the Fourth Proportional to 4,129.85, 5,699.36 and 2,361.45

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Solution

The fourth proportional to 4,129.85, 5,699.36 and 2,361.45 is: 3,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.85 : 5,699.36 = 2,361.45 : x
  2. Step 2: Convert to fraction form
    4,129.85/5,699.36 = 2,361.45/x
  3. Step 3: Cross multiply
    4,129.85x = 5,699.36 × 2,361.45
  4. Step 4: Simplify right side
    4,129.85x = 13,458,741.86
  5. Step 5: Solve for x
    x = 13,458,741.86/4,129.85
  6. Step 6: Final answer
    x = 3,258.90

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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.