Home / 3,954.39-5,457.61-2,275.77

Finding the Fourth Proportional to 3,954.39, 5,457.61 and 2,275.77

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Solution

The fourth proportional to 3,954.39, 5,457.61 and 2,275.77 is: 3,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.39 : 5,457.61 = 2,275.77 : x
  2. Step 2: Convert to fraction form
    3,954.39/5,457.61 = 2,275.77/x
  3. Step 3: Cross multiply
    3,954.39x = 5,457.61 × 2,275.77
  4. Step 4: Simplify right side
    3,954.39x = 12,420,265.11
  5. Step 5: Solve for x
    x = 12,420,265.11/3,954.39
  6. Step 6: Final answer
    x = 3,140.88

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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.