Home / 5,307.36-7,961.52-2,186.64

Finding the Fourth Proportional to 5,307.36, 7,961.52 and 2,186.64

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Solution

The fourth proportional to 5,307.36, 7,961.52 and 2,186.64 is: 3,280.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.36 : 7,961.52 = 2,186.64 : x
  2. Step 2: Convert to fraction form
    5,307.36/7,961.52 = 2,186.64/x
  3. Step 3: Cross multiply
    5,307.36x = 7,961.52 × 2,186.64
  4. Step 4: Simplify right side
    5,307.36x = 17,408,978.09
  5. Step 5: Solve for x
    x = 17,408,978.09/5,307.36
  6. Step 6: Final answer
    x = 3,280.16

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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.