Home / 4,286.18-6,428.47-1,945.62

Finding the Fourth Proportional to 4,286.18, 6,428.47 and 1,945.62

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Solution

The fourth proportional to 4,286.18, 6,428.47 and 1,945.62 is: 2,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.18 : 6,428.47 = 1,945.62 : x
  2. Step 2: Convert to fraction form
    4,286.18/6,428.47 = 1,945.62/x
  3. Step 3: Cross multiply
    4,286.18x = 6,428.47 × 1,945.62
  4. Step 4: Simplify right side
    4,286.18x = 12,507,359.80
  5. Step 5: Solve for x
    x = 12,507,359.80/4,286.18
  6. Step 6: Final answer
    x = 2,918.07

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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.