Home / 3,621.10-5,434.91-1,890.94

Finding the Fourth Proportional to 3,621.10, 5,434.91 and 1,890.94

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Solution

The fourth proportional to 3,621.10, 5,434.91 and 1,890.94 is: 2,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.10 : 5,434.91 = 1,890.94 : x
  2. Step 2: Convert to fraction form
    3,621.10/5,434.91 = 1,890.94/x
  3. Step 3: Cross multiply
    3,621.10x = 5,434.91 × 1,890.94
  4. Step 4: Simplify right side
    3,621.10x = 10,277,088.72
  5. Step 5: Solve for x
    x = 10,277,088.72/3,621.10
  6. Step 6: Final answer
    x = 2,838.11

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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.