Home / 2,156.24-3,228.60-1,177.76

Finding the Fourth Proportional to 2,156.24, 3,228.60 and 1,177.76

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Solution

The fourth proportional to 2,156.24, 3,228.60 and 1,177.76 is: 1,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.24 : 3,228.60 = 1,177.76 : x
  2. Step 2: Convert to fraction form
    2,156.24/3,228.60 = 1,177.76/x
  3. Step 3: Cross multiply
    2,156.24x = 3,228.60 × 1,177.76
  4. Step 4: Simplify right side
    2,156.24x = 3,802,515.94
  5. Step 5: Solve for x
    x = 3,802,515.94/2,156.24
  6. Step 6: Final answer
    x = 1,763.49

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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.