Home / 7,222.12-10,834.80-2,605.12

Finding the Fourth Proportional to 7,222.12, 10,834.80 and 2,605.12

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Solution

The fourth proportional to 7,222.12, 10,834.80 and 2,605.12 is: 3,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.12 : 10,834.80 = 2,605.12 : x
  2. Step 2: Convert to fraction form
    7,222.12/10,834.80 = 2,605.12/x
  3. Step 3: Cross multiply
    7,222.12x = 10,834.80 × 2,605.12
  4. Step 4: Simplify right side
    7,222.12x = 28,225,954.18
  5. Step 5: Solve for x
    x = 28,225,954.18/7,222.12
  6. Step 6: Final answer
    x = 3,908.26

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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.