Home / 2,915.75-4,371.14-1,271.07

Finding the Fourth Proportional to 2,915.75, 4,371.14 and 1,271.07

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Solution

The fourth proportional to 2,915.75, 4,371.14 and 1,271.07 is: 1,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.75 : 4,371.14 = 1,271.07 : x
  2. Step 2: Convert to fraction form
    2,915.75/4,371.14 = 1,271.07/x
  3. Step 3: Cross multiply
    2,915.75x = 4,371.14 × 1,271.07
  4. Step 4: Simplify right side
    2,915.75x = 5,556,012.23
  5. Step 5: Solve for x
    x = 5,556,012.23/2,915.75
  6. Step 6: Final answer
    x = 1,905.52

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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.