Home / 5,105.51-7,657.89-1,772.97

Finding the Fourth Proportional to 5,105.51, 7,657.89 and 1,772.97

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Solution

The fourth proportional to 5,105.51, 7,657.89 and 1,772.97 is: 2,659.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.51 : 7,657.89 = 1,772.97 : x
  2. Step 2: Convert to fraction form
    5,105.51/7,657.89 = 1,772.97/x
  3. Step 3: Cross multiply
    5,105.51x = 7,657.89 × 1,772.97
  4. Step 4: Simplify right side
    5,105.51x = 13,577,209.23
  5. Step 5: Solve for x
    x = 13,577,209.23/5,105.51
  6. Step 6: Final answer
    x = 2,659.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.