Home / 1,915.04-2,872.26-616.82

Finding the Fourth Proportional to 1,915.04, 2,872.26 and 616.82

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Solution

The fourth proportional to 1,915.04, 2,872.26 and 616.82 is: 925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.04 : 2,872.26 = 616.82 : x
  2. Step 2: Convert to fraction form
    1,915.04/2,872.26 = 616.82/x
  3. Step 3: Cross multiply
    1,915.04x = 2,872.26 × 616.82
  4. Step 4: Simplify right side
    1,915.04x = 1,771,653.05
  5. Step 5: Solve for x
    x = 1,771,653.05/1,915.04
  6. Step 6: Final answer
    x = 925.12

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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.