Home / 5,456.84-8,175.48-3,315.81

Finding the Fourth Proportional to 5,456.84, 8,175.48 and 3,315.81

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Solution

The fourth proportional to 5,456.84, 8,175.48 and 3,315.81 is: 4,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.84 : 8,175.48 = 3,315.81 : x
  2. Step 2: Convert to fraction form
    5,456.84/8,175.48 = 3,315.81/x
  3. Step 3: Cross multiply
    5,456.84x = 8,175.48 × 3,315.81
  4. Step 4: Simplify right side
    5,456.84x = 27,108,338.34
  5. Step 5: Solve for x
    x = 27,108,338.34/5,456.84
  6. Step 6: Final answer
    x = 4,967.77

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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.