Home / 2,151.52-3,227.25-1,420.92

Finding the Fourth Proportional to 2,151.52, 3,227.25 and 1,420.92

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Solution

The fourth proportional to 2,151.52, 3,227.25 and 1,420.92 is: 2,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.52 : 3,227.25 = 1,420.92 : x
  2. Step 2: Convert to fraction form
    2,151.52/3,227.25 = 1,420.92/x
  3. Step 3: Cross multiply
    2,151.52x = 3,227.25 × 1,420.92
  4. Step 4: Simplify right side
    2,151.52x = 4,585,664.07
  5. Step 5: Solve for x
    x = 4,585,664.07/2,151.52
  6. Step 6: Final answer
    x = 2,131.36

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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.