Home / 5,645.84-8,468.78-3,997.40

Finding the Fourth Proportional to 5,645.84, 8,468.78 and 3,997.40

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Solution

The fourth proportional to 5,645.84, 8,468.78 and 3,997.40 is: 5,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.84 : 8,468.78 = 3,997.40 : x
  2. Step 2: Convert to fraction form
    5,645.84/8,468.78 = 3,997.40/x
  3. Step 3: Cross multiply
    5,645.84x = 8,468.78 × 3,997.40
  4. Step 4: Simplify right side
    5,645.84x = 33,853,038.84
  5. Step 5: Solve for x
    x = 33,853,038.84/5,645.84
  6. Step 6: Final answer
    x = 5,996.11

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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.