Home / 2,655.06-3,660.32-2,118.52

Finding the Fourth Proportional to 2,655.06, 3,660.32 and 2,118.52

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Solution

The fourth proportional to 2,655.06, 3,660.32 and 2,118.52 is: 2,920.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.06 : 3,660.32 = 2,118.52 : x
  2. Step 2: Convert to fraction form
    2,655.06/3,660.32 = 2,118.52/x
  3. Step 3: Cross multiply
    2,655.06x = 3,660.32 × 2,118.52
  4. Step 4: Simplify right side
    2,655.06x = 7,754,446.68
  5. Step 5: Solve for x
    x = 7,754,446.68/2,655.06
  6. Step 6: Final answer
    x = 2,920.63

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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.