Home / 7,139.14-10,706.04-2,457.82

Finding the Fourth Proportional to 7,139.14, 10,706.04 and 2,457.82

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Solution

The fourth proportional to 7,139.14, 10,706.04 and 2,457.82 is: 3,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.14 : 10,706.04 = 2,457.82 : x
  2. Step 2: Convert to fraction form
    7,139.14/10,706.04 = 2,457.82/x
  3. Step 3: Cross multiply
    7,139.14x = 10,706.04 × 2,457.82
  4. Step 4: Simplify right side
    7,139.14x = 26,313,519.23
  5. Step 5: Solve for x
    x = 26,313,519.23/7,139.14
  6. Step 6: Final answer
    x = 3,685.81

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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.