Home / 5,349.21-7,382.25-2,991.53

Finding the Fourth Proportional to 5,349.21, 7,382.25 and 2,991.53

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Solution

The fourth proportional to 5,349.21, 7,382.25 and 2,991.53 is: 4,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.21 : 7,382.25 = 2,991.53 : x
  2. Step 2: Convert to fraction form
    5,349.21/7,382.25 = 2,991.53/x
  3. Step 3: Cross multiply
    5,349.21x = 7,382.25 × 2,991.53
  4. Step 4: Simplify right side
    5,349.21x = 22,084,185.43
  5. Step 5: Solve for x
    x = 22,084,185.43/5,349.21
  6. Step 6: Final answer
    x = 4,128.49

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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.