Home / 2,115.29-3,171.04-1,004.02

Finding the Fourth Proportional to 2,115.29, 3,171.04 and 1,004.02

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Solution

The fourth proportional to 2,115.29, 3,171.04 and 1,004.02 is: 1,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.29 : 3,171.04 = 1,004.02 : x
  2. Step 2: Convert to fraction form
    2,115.29/3,171.04 = 1,004.02/x
  3. Step 3: Cross multiply
    2,115.29x = 3,171.04 × 1,004.02
  4. Step 4: Simplify right side
    2,115.29x = 3,183,779.74
  5. Step 5: Solve for x
    x = 3,183,779.74/2,115.29
  6. Step 6: Final answer
    x = 1,505.13

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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.