Home / 3,325.70-4,990.23-2,215.87

Finding the Fourth Proportional to 3,325.70, 4,990.23 and 2,215.87

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Solution

The fourth proportional to 3,325.70, 4,990.23 and 2,215.87 is: 3,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.70 : 4,990.23 = 2,215.87 : x
  2. Step 2: Convert to fraction form
    3,325.70/4,990.23 = 2,215.87/x
  3. Step 3: Cross multiply
    3,325.70x = 4,990.23 × 2,215.87
  4. Step 4: Simplify right side
    3,325.70x = 11,057,695.41
  5. Step 5: Solve for x
    x = 11,057,695.41/3,325.70
  6. Step 6: Final answer
    x = 3,324.93

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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.