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Finding the Fourth Proportional to 1,994.33, 2,985.15 and 1,508.33

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Solution

The fourth proportional to 1,994.33, 2,985.15 and 1,508.33 is: 2,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.33 : 2,985.15 = 1,508.33 : x
  2. Step 2: Convert to fraction form
    1,994.33/2,985.15 = 1,508.33/x
  3. Step 3: Cross multiply
    1,994.33x = 2,985.15 × 1,508.33
  4. Step 4: Simplify right side
    1,994.33x = 4,502,591.30
  5. Step 5: Solve for x
    x = 4,502,591.30/1,994.33
  6. Step 6: Final answer
    x = 2,257.70

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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.