Home / 6,498-8,968.64-4,139.60

Finding the Fourth Proportional to 6,498, 8,968.64 and 4,139.60

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Solution

The fourth proportional to 6,498, 8,968.64 and 4,139.60 is: 5,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,498 : 8,968.64 = 4,139.60 : x
  2. Step 2: Convert to fraction form
    6,498/8,968.64 = 4,139.60/x
  3. Step 3: Cross multiply
    6,498x = 8,968.64 × 4,139.60
  4. Step 4: Simplify right side
    6,498x = 37,126,582.14
  5. Step 5: Solve for x
    x = 37,126,582.14/6,498
  6. Step 6: Final answer
    x = 5,713.54

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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.