Home / 5,655.78-8,463.60-3,680.18

Finding the Fourth Proportional to 5,655.78, 8,463.60 and 3,680.18

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Solution

The fourth proportional to 5,655.78, 8,463.60 and 3,680.18 is: 5,507.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.78 : 8,463.60 = 3,680.18 : x
  2. Step 2: Convert to fraction form
    5,655.78/8,463.60 = 3,680.18/x
  3. Step 3: Cross multiply
    5,655.78x = 8,463.60 × 3,680.18
  4. Step 4: Simplify right side
    5,655.78x = 31,147,571.45
  5. Step 5: Solve for x
    x = 31,147,571.45/5,655.78
  6. Step 6: Final answer
    x = 5,507.21

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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.