Home / 5,174.40-7,750.80-3,874.08

Finding the Fourth Proportional to 5,174.40, 7,750.80 and 3,874.08

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Solution

The fourth proportional to 5,174.40, 7,750.80 and 3,874.08 is: 5,803.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.40 : 7,750.80 = 3,874.08 : x
  2. Step 2: Convert to fraction form
    5,174.40/7,750.80 = 3,874.08/x
  3. Step 3: Cross multiply
    5,174.40x = 7,750.80 × 3,874.08
  4. Step 4: Simplify right side
    5,174.40x = 30,027,219.26
  5. Step 5: Solve for x
    x = 30,027,219.26/5,174.40
  6. Step 6: Final answer
    x = 5,803.03

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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.