Home / 3,681.77-5,078.25-2,422.43

Finding the Fourth Proportional to 3,681.77, 5,078.25 and 2,422.43

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Solution

The fourth proportional to 3,681.77, 5,078.25 and 2,422.43 is: 3,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.77 : 5,078.25 = 2,422.43 : x
  2. Step 2: Convert to fraction form
    3,681.77/5,078.25 = 2,422.43/x
  3. Step 3: Cross multiply
    3,681.77x = 5,078.25 × 2,422.43
  4. Step 4: Simplify right side
    3,681.77x = 12,301,679.76
  5. Step 5: Solve for x
    x = 12,301,679.76/3,681.77
  6. Step 6: Final answer
    x = 3,341.24

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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.