Home / 3,005.39-4,509.72-1,361.81

Finding the Fourth Proportional to 3,005.39, 4,509.72 and 1,361.81

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Solution

The fourth proportional to 3,005.39, 4,509.72 and 1,361.81 is: 2,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.39 : 4,509.72 = 1,361.81 : x
  2. Step 2: Convert to fraction form
    3,005.39/4,509.72 = 1,361.81/x
  3. Step 3: Cross multiply
    3,005.39x = 4,509.72 × 1,361.81
  4. Step 4: Simplify right side
    3,005.39x = 6,141,381.79
  5. Step 5: Solve for x
    x = 6,141,381.79/3,005.39
  6. Step 6: Final answer
    x = 2,043.46

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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.