Home / 2,838.78-3,915.30-1,844.38

Finding the Fourth Proportional to 2,838.78, 3,915.30 and 1,844.38

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Solution

The fourth proportional to 2,838.78, 3,915.30 and 1,844.38 is: 2,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.78 : 3,915.30 = 1,844.38 : x
  2. Step 2: Convert to fraction form
    2,838.78/3,915.30 = 1,844.38/x
  3. Step 3: Cross multiply
    2,838.78x = 3,915.30 × 1,844.38
  4. Step 4: Simplify right side
    2,838.78x = 7,221,282.00
  5. Step 5: Solve for x
    x = 7,221,282.00/2,838.78
  6. Step 6: Final answer
    x = 2,543.80

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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.