Home / 5,418.98-8,129.01-1,955.42

Finding the Fourth Proportional to 5,418.98, 8,129.01 and 1,955.42

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Solution

The fourth proportional to 5,418.98, 8,129.01 and 1,955.42 is: 2,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.98 : 8,129.01 = 1,955.42 : x
  2. Step 2: Convert to fraction form
    5,418.98/8,129.01 = 1,955.42/x
  3. Step 3: Cross multiply
    5,418.98x = 8,129.01 × 1,955.42
  4. Step 4: Simplify right side
    5,418.98x = 15,895,588.09
  5. Step 5: Solve for x
    x = 15,895,588.09/5,418.98
  6. Step 6: Final answer
    x = 2,933.32

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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.