Home / 5,154.84-7,732.68-1,645.32

Finding the Fourth Proportional to 5,154.84, 7,732.68 and 1,645.32

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Solution

The fourth proportional to 5,154.84, 7,732.68 and 1,645.32 is: 2,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.84 : 7,732.68 = 1,645.32 : x
  2. Step 2: Convert to fraction form
    5,154.84/7,732.68 = 1,645.32/x
  3. Step 3: Cross multiply
    5,154.84x = 7,732.68 × 1,645.32
  4. Step 4: Simplify right side
    5,154.84x = 12,722,733.06
  5. Step 5: Solve for x
    x = 12,722,733.06/5,154.84
  6. Step 6: Final answer
    x = 2,468.11

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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.