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Finding the Fourth Proportional to 1,942.42, 2,912.41 and 901.77

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Solution

The fourth proportional to 1,942.42, 2,912.41 and 901.77 is: 1,352.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.42 : 2,912.41 = 901.77 : x
  2. Step 2: Convert to fraction form
    1,942.42/2,912.41 = 901.77/x
  3. Step 3: Cross multiply
    1,942.42x = 2,912.41 × 901.77
  4. Step 4: Simplify right side
    1,942.42x = 2,626,319.46
  5. Step 5: Solve for x
    x = 2,626,319.46/1,942.42
  6. Step 6: Final answer
    x = 1,352.09

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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.