Home / 5,447.03-7,520.49-4,185.79

Finding the Fourth Proportional to 5,447.03, 7,520.49 and 4,185.79

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Solution

The fourth proportional to 5,447.03, 7,520.49 and 4,185.79 is: 5,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.03 : 7,520.49 = 4,185.79 : x
  2. Step 2: Convert to fraction form
    5,447.03/7,520.49 = 4,185.79/x
  3. Step 3: Cross multiply
    5,447.03x = 7,520.49 × 4,185.79
  4. Step 4: Simplify right side
    5,447.03x = 31,479,173.04
  5. Step 5: Solve for x
    x = 31,479,173.04/5,447.03
  6. Step 6: Final answer
    x = 5,779.15

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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.