Home / 2,915.36-4,374.39-1,455.47

Finding the Fourth Proportional to 2,915.36, 4,374.39 and 1,455.47

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Solution

The fourth proportional to 2,915.36, 4,374.39 and 1,455.47 is: 2,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.36 : 4,374.39 = 1,455.47 : x
  2. Step 2: Convert to fraction form
    2,915.36/4,374.39 = 1,455.47/x
  3. Step 3: Cross multiply
    2,915.36x = 4,374.39 × 1,455.47
  4. Step 4: Simplify right side
    2,915.36x = 6,366,771.54
  5. Step 5: Solve for x
    x = 6,366,771.54/2,915.36
  6. Step 6: Final answer
    x = 2,183.88

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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.