Home / 3,450.60-5,176.08-985.56

Finding the Fourth Proportional to 3,450.60, 5,176.08 and 985.56

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Solution

The fourth proportional to 3,450.60, 5,176.08 and 985.56 is: 1,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.60 : 5,176.08 = 985.56 : x
  2. Step 2: Convert to fraction form
    3,450.60/5,176.08 = 985.56/x
  3. Step 3: Cross multiply
    3,450.60x = 5,176.08 × 985.56
  4. Step 4: Simplify right side
    3,450.60x = 5,101,337.40
  5. Step 5: Solve for x
    x = 5,101,337.40/3,450.60
  6. Step 6: Final answer
    x = 1,478.39

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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.