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Finding the Fourth Proportional to 1,995.87, 2,994.14 and 1,117.99

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Solution

The fourth proportional to 1,995.87, 2,994.14 and 1,117.99 is: 1,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.87 : 2,994.14 = 1,117.99 : x
  2. Step 2: Convert to fraction form
    1,995.87/2,994.14 = 1,117.99/x
  3. Step 3: Cross multiply
    1,995.87x = 2,994.14 × 1,117.99
  4. Step 4: Simplify right side
    1,995.87x = 3,347,417.76
  5. Step 5: Solve for x
    x = 3,347,417.76/1,995.87
  6. Step 6: Final answer
    x = 1,677.18

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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.