Home / 6,317.60-8,718.44-3,665.12

Finding the Fourth Proportional to 6,317.60, 8,718.44 and 3,665.12

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Solution

The fourth proportional to 6,317.60, 8,718.44 and 3,665.12 is: 5,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,317.60 : 8,718.44 = 3,665.12 : x
  2. Step 2: Convert to fraction form
    6,317.60/8,718.44 = 3,665.12/x
  3. Step 3: Cross multiply
    6,317.60x = 8,718.44 × 3,665.12
  4. Step 4: Simplify right side
    6,317.60x = 31,954,128.81
  5. Step 5: Solve for x
    x = 31,954,128.81/6,317.60
  6. Step 6: Final answer
    x = 5,057.95

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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.