Home / 7,915.07-11,874.36-2,984.76

Finding the Fourth Proportional to 7,915.07, 11,874.36 and 2,984.76

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Solution

The fourth proportional to 7,915.07, 11,874.36 and 2,984.76 is: 4,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.07 : 11,874.36 = 2,984.76 : x
  2. Step 2: Convert to fraction form
    7,915.07/11,874.36 = 2,984.76/x
  3. Step 3: Cross multiply
    7,915.07x = 11,874.36 × 2,984.76
  4. Step 4: Simplify right side
    7,915.07x = 35,442,125.95
  5. Step 5: Solve for x
    x = 35,442,125.95/7,915.07
  6. Step 6: Final answer
    x = 4,477.80

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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.