Home / 2,915.96-4,025.56-1,922.88

Finding the Fourth Proportional to 2,915.96, 4,025.56 and 1,922.88

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Solution

The fourth proportional to 2,915.96, 4,025.56 and 1,922.88 is: 2,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.96 : 4,025.56 = 1,922.88 : x
  2. Step 2: Convert to fraction form
    2,915.96/4,025.56 = 1,922.88/x
  3. Step 3: Cross multiply
    2,915.96x = 4,025.56 × 1,922.88
  4. Step 4: Simplify right side
    2,915.96x = 7,740,668.81
  5. Step 5: Solve for x
    x = 7,740,668.81/2,915.96
  6. Step 6: Final answer
    x = 2,654.59

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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.