Home / 3,258.06-4,493.88-2,137.20

Finding the Fourth Proportional to 3,258.06, 4,493.88 and 2,137.20

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Solution

The fourth proportional to 3,258.06, 4,493.88 and 2,137.20 is: 2,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.06 : 4,493.88 = 2,137.20 : x
  2. Step 2: Convert to fraction form
    3,258.06/4,493.88 = 2,137.20/x
  3. Step 3: Cross multiply
    3,258.06x = 4,493.88 × 2,137.20
  4. Step 4: Simplify right side
    3,258.06x = 9,604,320.34
  5. Step 5: Solve for x
    x = 9,604,320.34/3,258.06
  6. Step 6: Final answer
    x = 2,947.86

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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.