Home / 5,705.82-7,872.59-3,347.51

Finding the Fourth Proportional to 5,705.82, 7,872.59 and 3,347.51

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Solution

The fourth proportional to 5,705.82, 7,872.59 and 3,347.51 is: 4,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.82 : 7,872.59 = 3,347.51 : x
  2. Step 2: Convert to fraction form
    5,705.82/7,872.59 = 3,347.51/x
  3. Step 3: Cross multiply
    5,705.82x = 7,872.59 × 3,347.51
  4. Step 4: Simplify right side
    5,705.82x = 26,353,542.76
  5. Step 5: Solve for x
    x = 26,353,542.76/5,705.82
  6. Step 6: Final answer
    x = 4,618.71

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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.