Home / 2,188.90-3,020.44-1,304.53

Finding the Fourth Proportional to 2,188.90, 3,020.44 and 1,304.53

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Solution

The fourth proportional to 2,188.90, 3,020.44 and 1,304.53 is: 1,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.90 : 3,020.44 = 1,304.53 : x
  2. Step 2: Convert to fraction form
    2,188.90/3,020.44 = 1,304.53/x
  3. Step 3: Cross multiply
    2,188.90x = 3,020.44 × 1,304.53
  4. Step 4: Simplify right side
    2,188.90x = 3,940,254.59
  5. Step 5: Solve for x
    x = 3,940,254.59/2,188.90
  6. Step 6: Final answer
    x = 1,800.11

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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.