Home / 2,639.18-3,941.91-2,388.63

Finding the Fourth Proportional to 2,639.18, 3,941.91 and 2,388.63

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Solution

The fourth proportional to 2,639.18, 3,941.91 and 2,388.63 is: 3,567.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.18 : 3,941.91 = 2,388.63 : x
  2. Step 2: Convert to fraction form
    2,639.18/3,941.91 = 2,388.63/x
  3. Step 3: Cross multiply
    2,639.18x = 3,941.91 × 2,388.63
  4. Step 4: Simplify right side
    2,639.18x = 9,415,764.48
  5. Step 5: Solve for x
    x = 9,415,764.48/2,639.18
  6. Step 6: Final answer
    x = 3,567.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.