Home / 1,486.62-2,054.25-1,438.56

Finding the Fourth Proportional to 1,486.62, 2,054.25 and 1,438.56

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Solution

The fourth proportional to 1,486.62, 2,054.25 and 1,438.56 is: 1,987.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.62 : 2,054.25 = 1,438.56 : x
  2. Step 2: Convert to fraction form
    1,486.62/2,054.25 = 1,438.56/x
  3. Step 3: Cross multiply
    1,486.62x = 2,054.25 × 1,438.56
  4. Step 4: Simplify right side
    1,486.62x = 2,955,161.88
  5. Step 5: Solve for x
    x = 2,955,161.88/1,486.62
  6. Step 6: Final answer
    x = 1,987.84

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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.