Home / 3,918.76-5,405.94-2,324.71

Finding the Fourth Proportional to 3,918.76, 5,405.94 and 2,324.71

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Solution

The fourth proportional to 3,918.76, 5,405.94 and 2,324.71 is: 3,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.76 : 5,405.94 = 2,324.71 : x
  2. Step 2: Convert to fraction form
    3,918.76/5,405.94 = 2,324.71/x
  3. Step 3: Cross multiply
    3,918.76x = 5,405.94 × 2,324.71
  4. Step 4: Simplify right side
    3,918.76x = 12,567,242.78
  5. Step 5: Solve for x
    x = 12,567,242.78/3,918.76
  6. Step 6: Final answer
    x = 3,206.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.