Home / 1,942.57-2,912.10-1,017.55

Finding the Fourth Proportional to 1,942.57, 2,912.10 and 1,017.55

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Solution

The fourth proportional to 1,942.57, 2,912.10 and 1,017.55 is: 1,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.57 : 2,912.10 = 1,017.55 : x
  2. Step 2: Convert to fraction form
    1,942.57/2,912.10 = 1,017.55/x
  3. Step 3: Cross multiply
    1,942.57x = 2,912.10 × 1,017.55
  4. Step 4: Simplify right side
    1,942.57x = 2,963,207.36
  5. Step 5: Solve for x
    x = 2,963,207.36/1,942.57
  6. Step 6: Final answer
    x = 1,525.41

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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.