Home / 4,005.35-5,522.01-2,808.72

Finding the Fourth Proportional to 4,005.35, 5,522.01 and 2,808.72

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Solution

The fourth proportional to 4,005.35, 5,522.01 and 2,808.72 is: 3,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.35 : 5,522.01 = 2,808.72 : x
  2. Step 2: Convert to fraction form
    4,005.35/5,522.01 = 2,808.72/x
  3. Step 3: Cross multiply
    4,005.35x = 5,522.01 × 2,808.72
  4. Step 4: Simplify right side
    4,005.35x = 15,509,779.93
  5. Step 5: Solve for x
    x = 15,509,779.93/4,005.35
  6. Step 6: Final answer
    x = 3,872.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.