Home / 6,317.46-8,715.60-3,663.90

Finding the Fourth Proportional to 6,317.46, 8,715.60 and 3,663.90

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Solution

The fourth proportional to 6,317.46, 8,715.60 and 3,663.90 is: 5,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,317.46 : 8,715.60 = 3,663.90 : x
  2. Step 2: Convert to fraction form
    6,317.46/8,715.60 = 3,663.90/x
  3. Step 3: Cross multiply
    6,317.46x = 8,715.60 × 3,663.90
  4. Step 4: Simplify right side
    6,317.46x = 31,933,086.84
  5. Step 5: Solve for x
    x = 31,933,086.84/6,317.46
  6. Step 6: Final answer
    x = 5,054.74

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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.