Home / 5,381.12-7,425.94-2,991.01

Finding the Fourth Proportional to 5,381.12, 7,425.94 and 2,991.01

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Solution

The fourth proportional to 5,381.12, 7,425.94 and 2,991.01 is: 4,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.12 : 7,425.94 = 2,991.01 : x
  2. Step 2: Convert to fraction form
    5,381.12/7,425.94 = 2,991.01/x
  3. Step 3: Cross multiply
    5,381.12x = 7,425.94 × 2,991.01
  4. Step 4: Simplify right side
    5,381.12x = 22,211,079.14
  5. Step 5: Solve for x
    x = 22,211,079.14/5,381.12
  6. Step 6: Final answer
    x = 4,127.60

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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.