Home / 2,685.21-4,024.16-1,994.48

Finding the Fourth Proportional to 2,685.21, 4,024.16 and 1,994.48

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Solution

The fourth proportional to 2,685.21, 4,024.16 and 1,994.48 is: 2,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.21 : 4,024.16 = 1,994.48 : x
  2. Step 2: Convert to fraction form
    2,685.21/4,024.16 = 1,994.48/x
  3. Step 3: Cross multiply
    2,685.21x = 4,024.16 × 1,994.48
  4. Step 4: Simplify right side
    2,685.21x = 8,026,106.64
  5. Step 5: Solve for x
    x = 8,026,106.64/2,685.21
  6. Step 6: Final answer
    x = 2,989.01

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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.