Home / 3,428.26-4,731.04-1,915.75

Finding the Fourth Proportional to 3,428.26, 4,731.04 and 1,915.75

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Solution

The fourth proportional to 3,428.26, 4,731.04 and 1,915.75 is: 2,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.26 : 4,731.04 = 1,915.75 : x
  2. Step 2: Convert to fraction form
    3,428.26/4,731.04 = 1,915.75/x
  3. Step 3: Cross multiply
    3,428.26x = 4,731.04 × 1,915.75
  4. Step 4: Simplify right side
    3,428.26x = 9,063,498.19
  5. Step 5: Solve for x
    x = 9,063,498.19/3,428.26
  6. Step 6: Final answer
    x = 2,643.76

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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.