Home / 1,749.56-2,414.70-1,189.65

Finding the Fourth Proportional to 1,749.56, 2,414.70 and 1,189.65

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Solution

The fourth proportional to 1,749.56, 2,414.70 and 1,189.65 is: 1,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.56 : 2,414.70 = 1,189.65 : x
  2. Step 2: Convert to fraction form
    1,749.56/2,414.70 = 1,189.65/x
  3. Step 3: Cross multiply
    1,749.56x = 2,414.70 × 1,189.65
  4. Step 4: Simplify right side
    1,749.56x = 2,872,641.91
  5. Step 5: Solve for x
    x = 2,872,641.91/1,749.56
  6. Step 6: Final answer
    x = 1,641.92

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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.