Home / 5,915.28-8,874.63-1,912.58

Finding the Fourth Proportional to 5,915.28, 8,874.63 and 1,912.58

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Solution

The fourth proportional to 5,915.28, 8,874.63 and 1,912.58 is: 2,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.28 : 8,874.63 = 1,912.58 : x
  2. Step 2: Convert to fraction form
    5,915.28/8,874.63 = 1,912.58/x
  3. Step 3: Cross multiply
    5,915.28x = 8,874.63 × 1,912.58
  4. Step 4: Simplify right side
    5,915.28x = 16,973,388.30
  5. Step 5: Solve for x
    x = 16,973,388.30/5,915.28
  6. Step 6: Final answer
    x = 2,869.42

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1.5x scale

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.