Home / 4,779.51-7,157.13-3,997.58

Finding the Fourth Proportional to 4,779.51, 7,157.13 and 3,997.58

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Solution

The fourth proportional to 4,779.51, 7,157.13 and 3,997.58 is: 5,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.51 : 7,157.13 = 3,997.58 : x
  2. Step 2: Convert to fraction form
    4,779.51/7,157.13 = 3,997.58/x
  3. Step 3: Cross multiply
    4,779.51x = 7,157.13 × 3,997.58
  4. Step 4: Simplify right side
    4,779.51x = 28,611,202.83
  5. Step 5: Solve for x
    x = 28,611,202.83/4,779.51
  6. Step 6: Final answer
    x = 5,986.23

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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.