Home / 3,954.89-5,457.58-2,275.15

Finding the Fourth Proportional to 3,954.89, 5,457.58 and 2,275.15

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Solution

The fourth proportional to 3,954.89, 5,457.58 and 2,275.15 is: 3,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.89 : 5,457.58 = 2,275.15 : x
  2. Step 2: Convert to fraction form
    3,954.89/5,457.58 = 2,275.15/x
  3. Step 3: Cross multiply
    3,954.89x = 5,457.58 × 2,275.15
  4. Step 4: Simplify right side
    3,954.89x = 12,416,793.81
  5. Step 5: Solve for x
    x = 12,416,793.81/3,954.89
  6. Step 6: Final answer
    x = 3,139.61

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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.