Home / 3,118.90-4,676.01-1,886.06

Finding the Fourth Proportional to 3,118.90, 4,676.01 and 1,886.06

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Solution

The fourth proportional to 3,118.90, 4,676.01 and 1,886.06 is: 2,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.90 : 4,676.01 = 1,886.06 : x
  2. Step 2: Convert to fraction form
    3,118.90/4,676.01 = 1,886.06/x
  3. Step 3: Cross multiply
    3,118.90x = 4,676.01 × 1,886.06
  4. Step 4: Simplify right side
    3,118.90x = 8,819,223.73
  5. Step 5: Solve for x
    x = 8,819,223.73/3,118.90
  6. Step 6: Final answer
    x = 2,827.67

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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.