Home / 1,452.35-2,004.23-789.19

Finding the Fourth Proportional to 1,452.35, 2,004.23 and 789.19

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Solution

The fourth proportional to 1,452.35, 2,004.23 and 789.19 is: 1,089.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.35 : 2,004.23 = 789.19 : x
  2. Step 2: Convert to fraction form
    1,452.35/2,004.23 = 789.19/x
  3. Step 3: Cross multiply
    1,452.35x = 2,004.23 × 789.19
  4. Step 4: Simplify right side
    1,452.35x = 1,581,704.31
  5. Step 5: Solve for x
    x = 1,581,704.31/1,452.35
  6. Step 6: Final answer
    x = 1,089.07

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1.5x scale

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.