Home / 3,505.81-5,258.41-1,284.65

Finding the Fourth Proportional to 3,505.81, 5,258.41 and 1,284.65

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Solution

The fourth proportional to 3,505.81, 5,258.41 and 1,284.65 is: 1,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.81 : 5,258.41 = 1,284.65 : x
  2. Step 2: Convert to fraction form
    3,505.81/5,258.41 = 1,284.65/x
  3. Step 3: Cross multiply
    3,505.81x = 5,258.41 × 1,284.65
  4. Step 4: Simplify right side
    3,505.81x = 6,755,226.34
  5. Step 5: Solve for x
    x = 6,755,226.34/3,505.81
  6. Step 6: Final answer
    x = 1,926.87

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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.