Home / 5,316.93-7,967.84-3,919.28

Finding the Fourth Proportional to 5,316.93, 7,967.84 and 3,919.28

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Solution

The fourth proportional to 5,316.93, 7,967.84 and 3,919.28 is: 5,873.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.93 : 7,967.84 = 3,919.28 : x
  2. Step 2: Convert to fraction form
    5,316.93/7,967.84 = 3,919.28/x
  3. Step 3: Cross multiply
    5,316.93x = 7,967.84 × 3,919.28
  4. Step 4: Simplify right side
    5,316.93x = 31,228,136.52
  5. Step 5: Solve for x
    x = 31,228,136.52/5,316.93
  6. Step 6: Final answer
    x = 5,873.34

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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.