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Finding the Fourth Proportional to 1,998.90, 2,994.71 and 1,739.70

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Solution

The fourth proportional to 1,998.90, 2,994.71 and 1,739.70 is: 2,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.90 : 2,994.71 = 1,739.70 : x
  2. Step 2: Convert to fraction form
    1,998.90/2,994.71 = 1,739.70/x
  3. Step 3: Cross multiply
    1,998.90x = 2,994.71 × 1,739.70
  4. Step 4: Simplify right side
    1,998.90x = 5,209,888.29
  5. Step 5: Solve for x
    x = 5,209,888.29/1,998.90
  6. Step 6: Final answer
    x = 2,606.38

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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.