Home / 3,450.56-5,176.01-985.74

Finding the Fourth Proportional to 3,450.56, 5,176.01 and 985.74

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Solution

The fourth proportional to 3,450.56, 5,176.01 and 985.74 is: 1,478.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.56 : 5,176.01 = 985.74 : x
  2. Step 2: Convert to fraction form
    3,450.56/5,176.01 = 985.74/x
  3. Step 3: Cross multiply
    3,450.56x = 5,176.01 × 985.74
  4. Step 4: Simplify right side
    3,450.56x = 5,102,195.17
  5. Step 5: Solve for x
    x = 5,102,195.17/3,450.56
  6. Step 6: Final answer
    x = 1,478.66

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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.