Home / 2,664.55-3,677.45-1,920.97

Finding the Fourth Proportional to 2,664.55, 3,677.45 and 1,920.97

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Solution

The fourth proportional to 2,664.55, 3,677.45 and 1,920.97 is: 2,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.55 : 3,677.45 = 1,920.97 : x
  2. Step 2: Convert to fraction form
    2,664.55/3,677.45 = 1,920.97/x
  3. Step 3: Cross multiply
    2,664.55x = 3,677.45 × 1,920.97
  4. Step 4: Simplify right side
    2,664.55x = 7,064,256.24
  5. Step 5: Solve for x
    x = 7,064,256.24/2,664.55
  6. Step 6: Final answer
    x = 2,651.20

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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.