Home / 4,771.68-7,149.74-2,428.46

Finding the Fourth Proportional to 4,771.68, 7,149.74 and 2,428.46

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Solution

The fourth proportional to 4,771.68, 7,149.74 and 2,428.46 is: 3,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.68 : 7,149.74 = 2,428.46 : x
  2. Step 2: Convert to fraction form
    4,771.68/7,149.74 = 2,428.46/x
  3. Step 3: Cross multiply
    4,771.68x = 7,149.74 × 2,428.46
  4. Step 4: Simplify right side
    4,771.68x = 17,362,836.52
  5. Step 5: Solve for x
    x = 17,362,836.52/4,771.68
  6. Step 6: Final answer
    x = 3,638.73

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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.