Home / 1,889.11-2,609.45-1,298.62

Finding the Fourth Proportional to 1,889.11, 2,609.45 and 1,298.62

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Solution

The fourth proportional to 1,889.11, 2,609.45 and 1,298.62 is: 1,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.11 : 2,609.45 = 1,298.62 : x
  2. Step 2: Convert to fraction form
    1,889.11/2,609.45 = 1,298.62/x
  3. Step 3: Cross multiply
    1,889.11x = 2,609.45 × 1,298.62
  4. Step 4: Simplify right side
    1,889.11x = 3,388,683.96
  5. Step 5: Solve for x
    x = 3,388,683.96/1,889.11
  6. Step 6: Final answer
    x = 1,793.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.