Home / 1,486.56-2,226.46-1,279.48

Finding the Fourth Proportional to 1,486.56, 2,226.46 and 1,279.48

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Solution

The fourth proportional to 1,486.56, 2,226.46 and 1,279.48 is: 1,916.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.56 : 2,226.46 = 1,279.48 : x
  2. Step 2: Convert to fraction form
    1,486.56/2,226.46 = 1,279.48/x
  3. Step 3: Cross multiply
    1,486.56x = 2,226.46 × 1,279.48
  4. Step 4: Simplify right side
    1,486.56x = 2,848,711.04
  5. Step 5: Solve for x
    x = 2,848,711.04/1,486.56
  6. Step 6: Final answer
    x = 1,916.31

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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.