Home / 2,982.21-4,475.13-1,885.06

Finding the Fourth Proportional to 2,982.21, 4,475.13 and 1,885.06

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Solution

The fourth proportional to 2,982.21, 4,475.13 and 1,885.06 is: 2,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982.21 : 4,475.13 = 1,885.06 : x
  2. Step 2: Convert to fraction form
    2,982.21/4,475.13 = 1,885.06/x
  3. Step 3: Cross multiply
    2,982.21x = 4,475.13 × 1,885.06
  4. Step 4: Simplify right side
    2,982.21x = 8,435,888.56
  5. Step 5: Solve for x
    x = 8,435,888.56/2,982.21
  6. Step 6: Final answer
    x = 2,828.74

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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.