Home / 5,721.66-7,891.80-3,705.06

Finding the Fourth Proportional to 5,721.66, 7,891.80 and 3,705.06

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Solution

The fourth proportional to 5,721.66, 7,891.80 and 3,705.06 is: 5,110.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.66 : 7,891.80 = 3,705.06 : x
  2. Step 2: Convert to fraction form
    5,721.66/7,891.80 = 3,705.06/x
  3. Step 3: Cross multiply
    5,721.66x = 7,891.80 × 3,705.06
  4. Step 4: Simplify right side
    5,721.66x = 29,239,592.51
  5. Step 5: Solve for x
    x = 29,239,592.51/5,721.66
  6. Step 6: Final answer
    x = 5,110.33

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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.