Home / 5,122.91-7,069.55-2,885.01

Finding the Fourth Proportional to 5,122.91, 7,069.55 and 2,885.01

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Solution

The fourth proportional to 5,122.91, 7,069.55 and 2,885.01 is: 3,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.91 : 7,069.55 = 2,885.01 : x
  2. Step 2: Convert to fraction form
    5,122.91/7,069.55 = 2,885.01/x
  3. Step 3: Cross multiply
    5,122.91x = 7,069.55 × 2,885.01
  4. Step 4: Simplify right side
    5,122.91x = 20,395,729.66
  5. Step 5: Solve for x
    x = 20,395,729.66/5,122.91
  6. Step 6: Final answer
    x = 3,981.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.