Home / 3,681.29-5,078.56-2,453.78

Finding the Fourth Proportional to 3,681.29, 5,078.56 and 2,453.78

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Solution

The fourth proportional to 3,681.29, 5,078.56 and 2,453.78 is: 3,385.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.29 : 5,078.56 = 2,453.78 : x
  2. Step 2: Convert to fraction form
    3,681.29/5,078.56 = 2,453.78/x
  3. Step 3: Cross multiply
    3,681.29x = 5,078.56 × 2,453.78
  4. Step 4: Simplify right side
    3,681.29x = 12,461,668.96
  5. Step 5: Solve for x
    x = 12,461,668.96/3,681.29
  6. Step 6: Final answer
    x = 3,385.14

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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.