Home / 3,505.71-5,251.40-2,808.60

Finding the Fourth Proportional to 3,505.71, 5,251.40 and 2,808.60

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Solution

The fourth proportional to 3,505.71, 5,251.40 and 2,808.60 is: 4,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.71 : 5,251.40 = 2,808.60 : x
  2. Step 2: Convert to fraction form
    3,505.71/5,251.40 = 2,808.60/x
  3. Step 3: Cross multiply
    3,505.71x = 5,251.40 × 2,808.60
  4. Step 4: Simplify right side
    3,505.71x = 14,749,068.00
  5. Step 5: Solve for x
    x = 14,749,068.00/3,505.71
  6. Step 6: Final answer
    x = 4,207.16

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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.