Home / 6,659.25-9,979.36-4,890.38

Finding the Fourth Proportional to 6,659.25, 9,979.36 and 4,890.38

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Solution

The fourth proportional to 6,659.25, 9,979.36 and 4,890.38 is: 7,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.25 : 9,979.36 = 4,890.38 : x
  2. Step 2: Convert to fraction form
    6,659.25/9,979.36 = 4,890.38/x
  3. Step 3: Cross multiply
    6,659.25x = 9,979.36 × 4,890.38
  4. Step 4: Simplify right side
    6,659.25x = 48,802,838.10
  5. Step 5: Solve for x
    x = 48,802,838.10/6,659.25
  6. Step 6: Final answer
    x = 7,328.58

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1.5x scale

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.