Home / 5,301.20-7,951.44-1,405.64

Finding the Fourth Proportional to 5,301.20, 7,951.44 and 1,405.64

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Solution

The fourth proportional to 5,301.20, 7,951.44 and 1,405.64 is: 2,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,301.20 : 7,951.44 = 1,405.64 : x
  2. Step 2: Convert to fraction form
    5,301.20/7,951.44 = 1,405.64/x
  3. Step 3: Cross multiply
    5,301.20x = 7,951.44 × 1,405.64
  4. Step 4: Simplify right side
    5,301.20x = 11,176,862.12
  5. Step 5: Solve for x
    x = 11,176,862.12/5,301.20
  6. Step 6: Final answer
    x = 2,108.36

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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.