Home / 2,126.58-3,190.68-955.95

Finding the Fourth Proportional to 2,126.58, 3,190.68 and 955.95

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Solution

The fourth proportional to 2,126.58, 3,190.68 and 955.95 is: 1,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.58 : 3,190.68 = 955.95 : x
  2. Step 2: Convert to fraction form
    2,126.58/3,190.68 = 955.95/x
  3. Step 3: Cross multiply
    2,126.58x = 3,190.68 × 955.95
  4. Step 4: Simplify right side
    2,126.58x = 3,050,130.55
  5. Step 5: Solve for x
    x = 3,050,130.55/2,126.58
  6. Step 6: Final answer
    x = 1,434.29

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1.5x scale

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.