Home / 1,943.57-2,912.73-1,064.75

Finding the Fourth Proportional to 1,943.57, 2,912.73 and 1,064.75

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Solution

The fourth proportional to 1,943.57, 2,912.73 and 1,064.75 is: 1,595.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.57 : 2,912.73 = 1,064.75 : x
  2. Step 2: Convert to fraction form
    1,943.57/2,912.73 = 1,064.75/x
  3. Step 3: Cross multiply
    1,943.57x = 2,912.73 × 1,064.75
  4. Step 4: Simplify right side
    1,943.57x = 3,101,329.27
  5. Step 5: Solve for x
    x = 3,101,329.27/1,943.57
  6. Step 6: Final answer
    x = 1,595.69

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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.