Home / 5,349.66-7,382.55-2,991.80

Finding the Fourth Proportional to 5,349.66, 7,382.55 and 2,991.80

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Solution

The fourth proportional to 5,349.66, 7,382.55 and 2,991.80 is: 4,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.66 : 7,382.55 = 2,991.80 : x
  2. Step 2: Convert to fraction form
    5,349.66/7,382.55 = 2,991.80/x
  3. Step 3: Cross multiply
    5,349.66x = 7,382.55 × 2,991.80
  4. Step 4: Simplify right side
    5,349.66x = 22,087,092.82
  5. Step 5: Solve for x
    x = 22,087,092.82/5,349.66
  6. Step 6: Final answer
    x = 4,128.69

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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.