Home / 3,954.32-5,457.24-2,275.76

Finding the Fourth Proportional to 3,954.32, 5,457.24 and 2,275.76

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Solution

The fourth proportional to 3,954.32, 5,457.24 and 2,275.76 is: 3,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.32 : 5,457.24 = 2,275.76 : x
  2. Step 2: Convert to fraction form
    3,954.32/5,457.24 = 2,275.76/x
  3. Step 3: Cross multiply
    3,954.32x = 5,457.24 × 2,275.76
  4. Step 4: Simplify right side
    3,954.32x = 12,419,368.50
  5. Step 5: Solve for x
    x = 12,419,368.50/3,954.32
  6. Step 6: Final answer
    x = 3,140.71

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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.