Home / 7,143.69-10,722.47-3,448.52

Finding the Fourth Proportional to 7,143.69, 10,722.47 and 3,448.52

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Solution

The fourth proportional to 7,143.69, 10,722.47 and 3,448.52 is: 5,176.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.69 : 10,722.47 = 3,448.52 : x
  2. Step 2: Convert to fraction form
    7,143.69/10,722.47 = 3,448.52/x
  3. Step 3: Cross multiply
    7,143.69x = 10,722.47 × 3,448.52
  4. Step 4: Simplify right side
    7,143.69x = 36,976,581.39
  5. Step 5: Solve for x
    x = 36,976,581.39/7,143.69
  6. Step 6: Final answer
    x = 5,176.12

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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.