Home / 1,915.07-2,872.53-616.50

Finding the Fourth Proportional to 1,915.07, 2,872.53 and 616.50

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Solution

The fourth proportional to 1,915.07, 2,872.53 and 616.50 is: 924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.07 : 2,872.53 = 616.50 : x
  2. Step 2: Convert to fraction form
    1,915.07/2,872.53 = 616.50/x
  3. Step 3: Cross multiply
    1,915.07x = 2,872.53 × 616.50
  4. Step 4: Simplify right side
    1,915.07x = 1,770,914.75
  5. Step 5: Solve for x
    x = 1,770,914.75/1,915.07
  6. Step 6: Final answer
    x = 924.73

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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.