Home / 5,187.26-7,158.40-2,829.42

Finding the Fourth Proportional to 5,187.26, 7,158.40 and 2,829.42

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Solution

The fourth proportional to 5,187.26, 7,158.40 and 2,829.42 is: 3,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.26 : 7,158.40 = 2,829.42 : x
  2. Step 2: Convert to fraction form
    5,187.26/7,158.40 = 2,829.42/x
  3. Step 3: Cross multiply
    5,187.26x = 7,158.40 × 2,829.42
  4. Step 4: Simplify right side
    5,187.26x = 20,254,120.13
  5. Step 5: Solve for x
    x = 20,254,120.13/5,187.26
  6. Step 6: Final answer
    x = 3,904.59

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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.