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Finding the Fourth Proportional to 1,992.49, 2,988.74 and 1,376.01

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Solution

The fourth proportional to 1,992.49, 2,988.74 and 1,376.01 is: 2,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.49 : 2,988.74 = 1,376.01 : x
  2. Step 2: Convert to fraction form
    1,992.49/2,988.74 = 1,376.01/x
  3. Step 3: Cross multiply
    1,992.49x = 2,988.74 × 1,376.01
  4. Step 4: Simplify right side
    1,992.49x = 4,112,539.57
  5. Step 5: Solve for x
    x = 4,112,539.57/1,992.49
  6. Step 6: Final answer
    x = 2,064.02

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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.