Home / 5,259.97-7,258.67-2,991.72

Finding the Fourth Proportional to 5,259.97, 7,258.67 and 2,991.72

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Solution

The fourth proportional to 5,259.97, 7,258.67 and 2,991.72 is: 4,128.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.97 : 7,258.67 = 2,991.72 : x
  2. Step 2: Convert to fraction form
    5,259.97/7,258.67 = 2,991.72/x
  3. Step 3: Cross multiply
    5,259.97x = 7,258.67 × 2,991.72
  4. Step 4: Simplify right side
    5,259.97x = 21,715,908.21
  5. Step 5: Solve for x
    x = 21,715,908.21/5,259.97
  6. Step 6: Final answer
    x = 4,128.52

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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.