Home / 1,460.36-2,189.82-486.44

Finding the Fourth Proportional to 1,460.36, 2,189.82 and 486.44

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Solution

The fourth proportional to 1,460.36, 2,189.82 and 486.44 is: 729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.36 : 2,189.82 = 486.44 : x
  2. Step 2: Convert to fraction form
    1,460.36/2,189.82 = 486.44/x
  3. Step 3: Cross multiply
    1,460.36x = 2,189.82 × 486.44
  4. Step 4: Simplify right side
    1,460.36x = 1,065,216.04
  5. Step 5: Solve for x
    x = 1,065,216.04/1,460.36
  6. Step 6: Final answer
    x = 729.42

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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.