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Finding the Fourth Proportional to 5,759.51, 7,947.11 and 3,400.79

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Solution

The fourth proportional to 5,759.51, 7,947.11 and 3,400.79 is: 4,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.51 : 7,947.11 = 3,400.79 : x
  2. Step 2: Convert to fraction form
    5,759.51/7,947.11 = 3,400.79/x
  3. Step 3: Cross multiply
    5,759.51x = 7,947.11 × 3,400.79
  4. Step 4: Simplify right side
    5,759.51x = 27,026,420.98
  5. Step 5: Solve for x
    x = 27,026,420.98/5,759.51
  6. Step 6: Final answer
    x = 4,692.49

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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.