Home / 4,239.64-6,361.86-1,642.72

Finding the Fourth Proportional to 4,239.64, 6,361.86 and 1,642.72

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Solution

The fourth proportional to 4,239.64, 6,361.86 and 1,642.72 is: 2,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.64 : 6,361.86 = 1,642.72 : x
  2. Step 2: Convert to fraction form
    4,239.64/6,361.86 = 1,642.72/x
  3. Step 3: Cross multiply
    4,239.64x = 6,361.86 × 1,642.72
  4. Step 4: Simplify right side
    4,239.64x = 10,450,754.66
  5. Step 5: Solve for x
    x = 10,450,754.66/4,239.64
  6. Step 6: Final answer
    x = 2,465.01

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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.