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Finding the Fourth Proportional to 1,889.93, 2,834.40 and 902.14

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Solution

The fourth proportional to 1,889.93, 2,834.40 and 902.14 is: 1,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.93 : 2,834.40 = 902.14 : x
  2. Step 2: Convert to fraction form
    1,889.93/2,834.40 = 902.14/x
  3. Step 3: Cross multiply
    1,889.93x = 2,834.40 × 902.14
  4. Step 4: Simplify right side
    1,889.93x = 2,557,025.62
  5. Step 5: Solve for x
    x = 2,557,025.62/1,889.93
  6. Step 6: Final answer
    x = 1,352.97

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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.