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Finding the Fourth Proportional to 3,485.67, 5,228.55 and 1,946.67

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Solution

The fourth proportional to 3,485.67, 5,228.55 and 1,946.67 is: 2,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.67 : 5,228.55 = 1,946.67 : x
  2. Step 2: Convert to fraction form
    3,485.67/5,228.55 = 1,946.67/x
  3. Step 3: Cross multiply
    3,485.67x = 5,228.55 × 1,946.67
  4. Step 4: Simplify right side
    3,485.67x = 10,178,261.43
  5. Step 5: Solve for x
    x = 10,178,261.43/3,485.67
  6. Step 6: Final answer
    x = 2,920.03

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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.