Home / 2,625.12-3,619.44-2,125.92

Finding the Fourth Proportional to 2,625.12, 3,619.44 and 2,125.92

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Solution

The fourth proportional to 2,625.12, 3,619.44 and 2,125.92 is: 2,931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.12 : 3,619.44 = 2,125.92 : x
  2. Step 2: Convert to fraction form
    2,625.12/3,619.44 = 2,125.92/x
  3. Step 3: Cross multiply
    2,625.12x = 3,619.44 × 2,125.92
  4. Step 4: Simplify right side
    2,625.12x = 7,694,639.88
  5. Step 5: Solve for x
    x = 7,694,639.88/2,625.12
  6. Step 6: Final answer
    x = 2,931.16

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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.