Home / 7,112.26-9,810.96-4,990.97

Finding the Fourth Proportional to 7,112.26, 9,810.96 and 4,990.97

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Solution

The fourth proportional to 7,112.26, 9,810.96 and 4,990.97 is: 6,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.26 : 9,810.96 = 4,990.97 : x
  2. Step 2: Convert to fraction form
    7,112.26/9,810.96 = 4,990.97/x
  3. Step 3: Cross multiply
    7,112.26x = 9,810.96 × 4,990.97
  4. Step 4: Simplify right side
    7,112.26x = 48,966,207.03
  5. Step 5: Solve for x
    x = 48,966,207.03/7,112.26
  6. Step 6: Final answer
    x = 6,884.76

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1.5x scale

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.