Home / 2,915.79-4,368.82-2,048.55

Finding the Fourth Proportional to 2,915.79, 4,368.82 and 2,048.55

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Solution

The fourth proportional to 2,915.79, 4,368.82 and 2,048.55 is: 3,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.79 : 4,368.82 = 2,048.55 : x
  2. Step 2: Convert to fraction form
    2,915.79/4,368.82 = 2,048.55/x
  3. Step 3: Cross multiply
    2,915.79x = 4,368.82 × 2,048.55
  4. Step 4: Simplify right side
    2,915.79x = 8,949,735.97
  5. Step 5: Solve for x
    x = 8,949,735.97/2,915.79
  6. Step 6: Final answer
    x = 3,069.40

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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.