Home / 5,349.24-7,382.28-2,991.54

Finding the Fourth Proportional to 5,349.24, 7,382.28 and 2,991.54

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Solution

The fourth proportional to 5,349.24, 7,382.28 and 2,991.54 is: 4,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.24 : 7,382.28 = 2,991.54 : x
  2. Step 2: Convert to fraction form
    5,349.24/7,382.28 = 2,991.54/x
  3. Step 3: Cross multiply
    5,349.24x = 7,382.28 × 2,991.54
  4. Step 4: Simplify right side
    5,349.24x = 22,084,385.91
  5. Step 5: Solve for x
    x = 22,084,385.91/5,349.24
  6. Step 6: Final answer
    x = 4,128.51

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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.