Home / 2,126.18-3,188.70-955.52

Finding the Fourth Proportional to 2,126.18, 3,188.70 and 955.52

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Solution

The fourth proportional to 2,126.18, 3,188.70 and 955.52 is: 1,433.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.18 : 3,188.70 = 955.52 : x
  2. Step 2: Convert to fraction form
    2,126.18/3,188.70 = 955.52/x
  3. Step 3: Cross multiply
    2,126.18x = 3,188.70 × 955.52
  4. Step 4: Simplify right side
    2,126.18x = 3,046,866.62
  5. Step 5: Solve for x
    x = 3,046,866.62/2,126.18
  6. Step 6: Final answer
    x = 1,433.02

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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.