Home / 1,452.31-2,004.19-789.17

Finding the Fourth Proportional to 1,452.31, 2,004.19 and 789.17

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Solution

The fourth proportional to 1,452.31, 2,004.19 and 789.17 is: 1,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.31 : 2,004.19 = 789.17 : x
  2. Step 2: Convert to fraction form
    1,452.31/2,004.19 = 789.17/x
  3. Step 3: Cross multiply
    1,452.31x = 2,004.19 × 789.17
  4. Step 4: Simplify right side
    1,452.31x = 1,581,636.60
  5. Step 5: Solve for x
    x = 1,581,636.60/1,452.31
  6. Step 6: Final answer
    x = 1,089.05

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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.