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Finding the Fourth Proportional to 1,994.98, 2,994.30 and 1,531.26

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Solution

The fourth proportional to 1,994.98, 2,994.30 and 1,531.26 is: 2,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.98 : 2,994.30 = 1,531.26 : x
  2. Step 2: Convert to fraction form
    1,994.98/2,994.30 = 1,531.26/x
  3. Step 3: Cross multiply
    1,994.98x = 2,994.30 × 1,531.26
  4. Step 4: Simplify right side
    1,994.98x = 4,585,051.82
  5. Step 5: Solve for x
    x = 4,585,051.82/1,994.98
  6. Step 6: Final answer
    x = 2,298.29

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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.