Home / 5,179.84-7,145.04-3,317.92

Finding the Fourth Proportional to 5,179.84, 7,145.04 and 3,317.92

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Solution

The fourth proportional to 5,179.84, 7,145.04 and 3,317.92 is: 4,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.84 : 7,145.04 = 3,317.92 : x
  2. Step 2: Convert to fraction form
    5,179.84/7,145.04 = 3,317.92/x
  3. Step 3: Cross multiply
    5,179.84x = 7,145.04 × 3,317.92
  4. Step 4: Simplify right side
    5,179.84x = 23,706,671.12
  5. Step 5: Solve for x
    x = 23,706,671.12/5,179.84
  6. Step 6: Final answer
    x = 4,576.72

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1.5x scale

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.