Home / 4,690.62-7,035.39-1,915.38

Finding the Fourth Proportional to 4,690.62, 7,035.39 and 1,915.38

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Solution

The fourth proportional to 4,690.62, 7,035.39 and 1,915.38 is: 2,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.62 : 7,035.39 = 1,915.38 : x
  2. Step 2: Convert to fraction form
    4,690.62/7,035.39 = 1,915.38/x
  3. Step 3: Cross multiply
    4,690.62x = 7,035.39 × 1,915.38
  4. Step 4: Simplify right side
    4,690.62x = 13,475,445.30
  5. Step 5: Solve for x
    x = 13,475,445.30/4,690.62
  6. Step 6: Final answer
    x = 2,872.85

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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.