Home / 5,300.82-7,315.36-2,910.88

Finding the Fourth Proportional to 5,300.82, 7,315.36 and 2,910.88

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Solution

The fourth proportional to 5,300.82, 7,315.36 and 2,910.88 is: 4,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.82 : 7,315.36 = 2,910.88 : x
  2. Step 2: Convert to fraction form
    5,300.82/7,315.36 = 2,910.88/x
  3. Step 3: Cross multiply
    5,300.82x = 7,315.36 × 2,910.88
  4. Step 4: Simplify right side
    5,300.82x = 21,294,135.12
  5. Step 5: Solve for x
    x = 21,294,135.12/5,300.82
  6. Step 6: Final answer
    x = 4,017.14

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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.