Home / 6,388.16-9,583.38-2,639.95

Finding the Fourth Proportional to 6,388.16, 9,583.38 and 2,639.95

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Solution

The fourth proportional to 6,388.16, 9,583.38 and 2,639.95 is: 3,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.16 : 9,583.38 = 2,639.95 : x
  2. Step 2: Convert to fraction form
    6,388.16/9,583.38 = 2,639.95/x
  3. Step 3: Cross multiply
    6,388.16x = 9,583.38 × 2,639.95
  4. Step 4: Simplify right side
    6,388.16x = 25,299,620.07
  5. Step 5: Solve for x
    x = 25,299,620.07/6,388.16
  6. Step 6: Final answer
    x = 3,960.40

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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.