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Finding the Fourth Proportional to 3,779.81, 5,648.04 and 2,885.39

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Solution

The fourth proportional to 3,779.81, 5,648.04 and 2,885.39 is: 4,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.81 : 5,648.04 = 2,885.39 : x
  2. Step 2: Convert to fraction form
    3,779.81/5,648.04 = 2,885.39/x
  3. Step 3: Cross multiply
    3,779.81x = 5,648.04 × 2,885.39
  4. Step 4: Simplify right side
    3,779.81x = 16,296,783.71
  5. Step 5: Solve for x
    x = 16,296,783.71/3,779.81
  6. Step 6: Final answer
    x = 4,311.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.