Home / 4,485.72-6,715.98-2,289.72

Finding the Fourth Proportional to 4,485.72, 6,715.98 and 2,289.72

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Solution

The fourth proportional to 4,485.72, 6,715.98 and 2,289.72 is: 3,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.72 : 6,715.98 = 2,289.72 : x
  2. Step 2: Convert to fraction form
    4,485.72/6,715.98 = 2,289.72/x
  3. Step 3: Cross multiply
    4,485.72x = 6,715.98 × 2,289.72
  4. Step 4: Simplify right side
    4,485.72x = 15,377,713.73
  5. Step 5: Solve for x
    x = 15,377,713.73/4,485.72
  6. Step 6: Final answer
    x = 3,428.15

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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.