Home / 2,625.12-3,938.76-2,411.28

Finding the Fourth Proportional to 2,625.12, 3,938.76 and 2,411.28

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Solution

The fourth proportional to 2,625.12, 3,938.76 and 2,411.28 is: 3,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.12 : 3,938.76 = 2,411.28 : x
  2. Step 2: Convert to fraction form
    2,625.12/3,938.76 = 2,411.28/x
  3. Step 3: Cross multiply
    2,625.12x = 3,938.76 × 2,411.28
  4. Step 4: Simplify right side
    2,625.12x = 9,497,453.21
  5. Step 5: Solve for x
    x = 9,497,453.21/2,625.12
  6. Step 6: Final answer
    x = 3,617.91

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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.