Home / 6,318.50-8,721.26-3,666.75

Finding the Fourth Proportional to 6,318.50, 8,721.26 and 3,666.75

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Solution

The fourth proportional to 6,318.50, 8,721.26 and 3,666.75 is: 5,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.50 : 8,721.26 = 3,666.75 : x
  2. Step 2: Convert to fraction form
    6,318.50/8,721.26 = 3,666.75/x
  3. Step 3: Cross multiply
    6,318.50x = 8,721.26 × 3,666.75
  4. Step 4: Simplify right side
    6,318.50x = 31,978,661.77
  5. Step 5: Solve for x
    x = 31,978,661.77/6,318.50
  6. Step 6: Final answer
    x = 5,061.12

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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.