Home / 5,827.35-8,741.89-2,128.72

Finding the Fourth Proportional to 5,827.35, 8,741.89 and 2,128.72

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Solution

The fourth proportional to 5,827.35, 8,741.89 and 2,128.72 is: 3,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,827.35 : 8,741.89 = 2,128.72 : x
  2. Step 2: Convert to fraction form
    5,827.35/8,741.89 = 2,128.72/x
  3. Step 3: Cross multiply
    5,827.35x = 8,741.89 × 2,128.72
  4. Step 4: Simplify right side
    5,827.35x = 18,609,000.64
  5. Step 5: Solve for x
    x = 18,609,000.64/5,827.35
  6. Step 6: Final answer
    x = 3,193.39

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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.