Home / 7,091.45-10,638.30-2,411.90

Finding the Fourth Proportional to 7,091.45, 10,638.30 and 2,411.90

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Solution

The fourth proportional to 7,091.45, 10,638.30 and 2,411.90 is: 3,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.45 : 10,638.30 = 2,411.90 : x
  2. Step 2: Convert to fraction form
    7,091.45/10,638.30 = 2,411.90/x
  3. Step 3: Cross multiply
    7,091.45x = 10,638.30 × 2,411.90
  4. Step 4: Simplify right side
    7,091.45x = 25,658,515.77
  5. Step 5: Solve for x
    x = 25,658,515.77/7,091.45
  6. Step 6: Final answer
    x = 3,618.23

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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.