Home / 5,051.88-7,581.36-2,828.40

Finding the Fourth Proportional to 5,051.88, 7,581.36 and 2,828.40

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Solution

The fourth proportional to 5,051.88, 7,581.36 and 2,828.40 is: 4,244.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,051.88 : 7,581.36 = 2,828.40 : x
  2. Step 2: Convert to fraction form
    5,051.88/7,581.36 = 2,828.40/x
  3. Step 3: Cross multiply
    5,051.88x = 7,581.36 × 2,828.40
  4. Step 4: Simplify right side
    5,051.88x = 21,443,118.62
  5. Step 5: Solve for x
    x = 21,443,118.62/5,051.88
  6. Step 6: Final answer
    x = 4,244.58

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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.