Home / 5,149.84-7,111.82-4,399.43

Finding the Fourth Proportional to 5,149.84, 7,111.82 and 4,399.43

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Solution

The fourth proportional to 5,149.84, 7,111.82 and 4,399.43 is: 6,075.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.84 : 7,111.82 = 4,399.43 : x
  2. Step 2: Convert to fraction form
    5,149.84/7,111.82 = 4,399.43/x
  3. Step 3: Cross multiply
    5,149.84x = 7,111.82 × 4,399.43
  4. Step 4: Simplify right side
    5,149.84x = 31,287,954.26
  5. Step 5: Solve for x
    x = 31,287,954.26/5,149.84
  6. Step 6: Final answer
    x = 6,075.52

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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.