Home / 6,419.39-9,607.21-4,771.85

Finding the Fourth Proportional to 6,419.39, 9,607.21 and 4,771.85

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Solution

The fourth proportional to 6,419.39, 9,607.21 and 4,771.85 is: 7,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.39 : 9,607.21 = 4,771.85 : x
  2. Step 2: Convert to fraction form
    6,419.39/9,607.21 = 4,771.85/x
  3. Step 3: Cross multiply
    6,419.39x = 9,607.21 × 4,771.85
  4. Step 4: Simplify right side
    6,419.39x = 45,844,105.07
  5. Step 5: Solve for x
    x = 45,844,105.07/6,419.39
  6. Step 6: Final answer
    x = 7,141.51

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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.