Home / 3,315.56-4,974.60-2,081.60

Finding the Fourth Proportional to 3,315.56, 4,974.60 and 2,081.60

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Solution

The fourth proportional to 3,315.56, 4,974.60 and 2,081.60 is: 3,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.56 : 4,974.60 = 2,081.60 : x
  2. Step 2: Convert to fraction form
    3,315.56/4,974.60 = 2,081.60/x
  3. Step 3: Cross multiply
    3,315.56x = 4,974.60 × 2,081.60
  4. Step 4: Simplify right side
    3,315.56x = 10,355,127.36
  5. Step 5: Solve for x
    x = 10,355,127.36/3,315.56
  6. Step 6: Final answer
    x = 3,123.19

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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.