Home / 2,915.20-4,022-1,735.60

Finding the Fourth Proportional to 2,915.20, 4,022 and 1,735.60

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Solution

The fourth proportional to 2,915.20, 4,022 and 1,735.60 is: 2,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.20 : 4,022 = 1,735.60 : x
  2. Step 2: Convert to fraction form
    2,915.20/4,022 = 1,735.60/x
  3. Step 3: Cross multiply
    2,915.20x = 4,022 × 1,735.60
  4. Step 4: Simplify right side
    2,915.20x = 6,980,583.20
  5. Step 5: Solve for x
    x = 6,980,583.20/2,915.20
  6. Step 6: Final answer
    x = 2,394.55

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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.