Home / 4,222.58-6,337.32-2,991.20

Finding the Fourth Proportional to 4,222.58, 6,337.32 and 2,991.20

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Solution

The fourth proportional to 4,222.58, 6,337.32 and 2,991.20 is: 4,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.58 : 6,337.32 = 2,991.20 : x
  2. Step 2: Convert to fraction form
    4,222.58/6,337.32 = 2,991.20/x
  3. Step 3: Cross multiply
    4,222.58x = 6,337.32 × 2,991.20
  4. Step 4: Simplify right side
    4,222.58x = 18,956,191.58
  5. Step 5: Solve for x
    x = 18,956,191.58/4,222.58
  6. Step 6: Final answer
    x = 4,489.24

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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.