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Finding the Fourth Proportional to 5,786.84, 7,985.84 and 3,134.25

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Solution

The fourth proportional to 5,786.84, 7,985.84 and 3,134.25 is: 4,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.84 : 7,985.84 = 3,134.25 : x
  2. Step 2: Convert to fraction form
    5,786.84/7,985.84 = 3,134.25/x
  3. Step 3: Cross multiply
    5,786.84x = 7,985.84 × 3,134.25
  4. Step 4: Simplify right side
    5,786.84x = 25,029,603.35
  5. Step 5: Solve for x
    x = 25,029,603.35/5,786.84
  6. Step 6: Final answer
    x = 4,325.27

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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.