Home / 2,258.12-3,113.22-1,628.12

Finding the Fourth Proportional to 2,258.12, 3,113.22 and 1,628.12

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Solution

The fourth proportional to 2,258.12, 3,113.22 and 1,628.12 is: 2,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.12 : 3,113.22 = 1,628.12 : x
  2. Step 2: Convert to fraction form
    2,258.12/3,113.22 = 1,628.12/x
  3. Step 3: Cross multiply
    2,258.12x = 3,113.22 × 1,628.12
  4. Step 4: Simplify right side
    2,258.12x = 5,068,695.75
  5. Step 5: Solve for x
    x = 5,068,695.75/2,258.12
  6. Step 6: Final answer
    x = 2,244.65

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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.