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Finding the Fourth Proportional to 1,975.63, 2,963.44 and 607.63

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Solution

The fourth proportional to 1,975.63, 2,963.44 and 607.63 is: 911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.63 : 2,963.44 = 607.63 : x
  2. Step 2: Convert to fraction form
    1,975.63/2,963.44 = 607.63/x
  3. Step 3: Cross multiply
    1,975.63x = 2,963.44 × 607.63
  4. Step 4: Simplify right side
    1,975.63x = 1,800,660.23
  5. Step 5: Solve for x
    x = 1,800,660.23/1,975.63
  6. Step 6: Final answer
    x = 911.44

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1.5x scale

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.