Home / 6,349.88-9,513.30-4,979

Finding the Fourth Proportional to 6,349.88, 9,513.30 and 4,979

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Solution

The fourth proportional to 6,349.88, 9,513.30 and 4,979 is: 7,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.88 : 9,513.30 = 4,979 : x
  2. Step 2: Convert to fraction form
    6,349.88/9,513.30 = 4,979/x
  3. Step 3: Cross multiply
    6,349.88x = 9,513.30 × 4,979
  4. Step 4: Simplify right side
    6,349.88x = 47,366,720.70
  5. Step 5: Solve for x
    x = 47,366,720.70/6,349.88
  6. Step 6: Final answer
    x = 7,459.47

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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.