Home / 7,286.79-10,920.47-4,167.75

Finding the Fourth Proportional to 7,286.79, 10,920.47 and 4,167.75

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Solution

The fourth proportional to 7,286.79, 10,920.47 and 4,167.75 is: 6,246.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.79 : 10,920.47 = 4,167.75 : x
  2. Step 2: Convert to fraction form
    7,286.79/10,920.47 = 4,167.75/x
  3. Step 3: Cross multiply
    7,286.79x = 10,920.47 × 4,167.75
  4. Step 4: Simplify right side
    7,286.79x = 45,513,768.00
  5. Step 5: Solve for x
    x = 45,513,768.00/7,286.79
  6. Step 6: Final answer
    x = 6,246.07

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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.