Home / 1,915.25-2,873.75-1,429.25

Finding the Fourth Proportional to 1,915.25, 2,873.75 and 1,429.25

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Solution

The fourth proportional to 1,915.25, 2,873.75 and 1,429.25 is: 2,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.25 : 2,873.75 = 1,429.25 : x
  2. Step 2: Convert to fraction form
    1,915.25/2,873.75 = 1,429.25/x
  3. Step 3: Cross multiply
    1,915.25x = 2,873.75 × 1,429.25
  4. Step 4: Simplify right side
    1,915.25x = 4,107,285.67
  5. Step 5: Solve for x
    x = 4,107,285.67/1,915.25
  6. Step 6: Final answer
    x = 2,144.52

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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.