Home / 3,258.40-4,878.96-1,958.08

Finding the Fourth Proportional to 3,258.40, 4,878.96 and 1,958.08

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Solution

The fourth proportional to 3,258.40, 4,878.96 and 1,958.08 is: 2,931.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.40 : 4,878.96 = 1,958.08 : x
  2. Step 2: Convert to fraction form
    3,258.40/4,878.96 = 1,958.08/x
  3. Step 3: Cross multiply
    3,258.40x = 4,878.96 × 1,958.08
  4. Step 4: Simplify right side
    3,258.40x = 9,553,394.00
  5. Step 5: Solve for x
    x = 9,553,394.00/3,258.40
  6. Step 6: Final answer
    x = 2,931.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.