Home / 2,915.39-4,025.07-1,922.36

Finding the Fourth Proportional to 2,915.39, 4,025.07 and 1,922.36

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Solution

The fourth proportional to 2,915.39, 4,025.07 and 1,922.36 is: 2,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.39 : 4,025.07 = 1,922.36 : x
  2. Step 2: Convert to fraction form
    2,915.39/4,025.07 = 1,922.36/x
  3. Step 3: Cross multiply
    2,915.39x = 4,025.07 × 1,922.36
  4. Step 4: Simplify right side
    2,915.39x = 7,737,619.35
  5. Step 5: Solve for x
    x = 7,737,619.35/2,915.39
  6. Step 6: Final answer
    x = 2,654.06

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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.