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Finding the Fourth Proportional to 1,992.06, 2,987.07 and 895.49

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Solution

The fourth proportional to 1,992.06, 2,987.07 and 895.49 is: 1,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.06 : 2,987.07 = 895.49 : x
  2. Step 2: Convert to fraction form
    1,992.06/2,987.07 = 895.49/x
  3. Step 3: Cross multiply
    1,992.06x = 2,987.07 × 895.49
  4. Step 4: Simplify right side
    1,992.06x = 2,674,895.42
  5. Step 5: Solve for x
    x = 2,674,895.42/1,992.06
  6. Step 6: Final answer
    x = 1,342.78

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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.