Home / 2,285.19-3,428.33-1,189.31

Finding the Fourth Proportional to 2,285.19, 3,428.33 and 1,189.31

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Solution

The fourth proportional to 2,285.19, 3,428.33 and 1,189.31 is: 1,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.19 : 3,428.33 = 1,189.31 : x
  2. Step 2: Convert to fraction form
    2,285.19/3,428.33 = 1,189.31/x
  3. Step 3: Cross multiply
    2,285.19x = 3,428.33 × 1,189.31
  4. Step 4: Simplify right side
    2,285.19x = 4,077,324.06
  5. Step 5: Solve for x
    x = 4,077,324.06/2,285.19
  6. Step 6: Final answer
    x = 1,784.24

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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.