Home / 2,115,915.37-2,919,963.78-1,149,045.41

Finding the Fourth Proportional to 2,115,915.37, 2,919,963.78 and 1,149,045.41

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Solution

The fourth proportional to 2,115,915.37, 2,919,963.78 and 1,149,045.41 is: 1,585,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,915.37 : 2,919,963.78 = 1,149,045.41 : x
  2. Step 2: Convert to fraction form
    2,115,915.37/2,919,963.78 = 1,149,045.41/x
  3. Step 3: Cross multiply
    2,115,915.37x = 2,919,963.78 × 1,149,045.41
  4. Step 4: Simplify right side
    2,115,915.37x = 3,355,170,964,175.43
  5. Step 5: Solve for x
    x = 3,355,170,964,175.43/2,115,915.37
  6. Step 6: Final answer
    x = 1,585,682.97

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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.