Home / 5,343.84-7,998.48-3,147.12

Finding the Fourth Proportional to 5,343.84, 7,998.48 and 3,147.12

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Solution

The fourth proportional to 5,343.84, 7,998.48 and 3,147.12 is: 4,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.84 : 7,998.48 = 3,147.12 : x
  2. Step 2: Convert to fraction form
    5,343.84/7,998.48 = 3,147.12/x
  3. Step 3: Cross multiply
    5,343.84x = 7,998.48 × 3,147.12
  4. Step 4: Simplify right side
    5,343.84x = 25,172,176.38
  5. Step 5: Solve for x
    x = 25,172,176.38/5,343.84
  6. Step 6: Final answer
    x = 4,710.50

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Half scale
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1.5x scale

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.