Home / 7,291.27-10,936.36-2,909.71

Finding the Fourth Proportional to 7,291.27, 10,936.36 and 2,909.71

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Solution

The fourth proportional to 7,291.27, 10,936.36 and 2,909.71 is: 4,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.27 : 10,936.36 = 2,909.71 : x
  2. Step 2: Convert to fraction form
    7,291.27/10,936.36 = 2,909.71/x
  3. Step 3: Cross multiply
    7,291.27x = 10,936.36 × 2,909.71
  4. Step 4: Simplify right side
    7,291.27x = 31,821,636.06
  5. Step 5: Solve for x
    x = 31,821,636.06/7,291.27
  6. Step 6: Final answer
    x = 4,364.35

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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.