Home / 2,639.40-3,957.48-2,467.68

Finding the Fourth Proportional to 2,639.40, 3,957.48 and 2,467.68

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Solution

The fourth proportional to 2,639.40, 3,957.48 and 2,467.68 is: 3,700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.40 : 3,957.48 = 2,467.68 : x
  2. Step 2: Convert to fraction form
    2,639.40/3,957.48 = 2,467.68/x
  3. Step 3: Cross multiply
    2,639.40x = 3,957.48 × 2,467.68
  4. Step 4: Simplify right side
    2,639.40x = 9,765,794.25
  5. Step 5: Solve for x
    x = 9,765,794.25/2,639.40
  6. Step 6: Final answer
    x = 3,700.01

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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.