Home / 2,915.09-4,021.14-2,017.44

Finding the Fourth Proportional to 2,915.09, 4,021.14 and 2,017.44

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Solution

The fourth proportional to 2,915.09, 4,021.14 and 2,017.44 is: 2,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.09 : 4,021.14 = 2,017.44 : x
  2. Step 2: Convert to fraction form
    2,915.09/4,021.14 = 2,017.44/x
  3. Step 3: Cross multiply
    2,915.09x = 4,021.14 × 2,017.44
  4. Step 4: Simplify right side
    2,915.09x = 8,112,416.25
  5. Step 5: Solve for x
    x = 8,112,416.25/2,915.09
  6. Step 6: Final answer
    x = 2,782.91

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1.5x scale

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.