Home / 2,915.66-4,375.46-1,271.26

Finding the Fourth Proportional to 2,915.66, 4,375.46 and 1,271.26

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Solution

The fourth proportional to 2,915.66, 4,375.46 and 1,271.26 is: 1,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.66 : 4,375.46 = 1,271.26 : x
  2. Step 2: Convert to fraction form
    2,915.66/4,375.46 = 1,271.26/x
  3. Step 3: Cross multiply
    2,915.66x = 4,375.46 × 1,271.26
  4. Step 4: Simplify right side
    2,915.66x = 5,562,347.28
  5. Step 5: Solve for x
    x = 5,562,347.28/2,915.66
  6. Step 6: Final answer
    x = 1,907.75

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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.