Home / 1,601.39-2,211.00-1,227.71

Finding the Fourth Proportional to 1,601.39, 2,211.00 and 1,227.71

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Solution

The fourth proportional to 1,601.39, 2,211.00 and 1,227.71 is: 1,695.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.39 : 2,211.00 = 1,227.71 : x
  2. Step 2: Convert to fraction form
    1,601.39/2,211.00 = 1,227.71/x
  3. Step 3: Cross multiply
    1,601.39x = 2,211.00 × 1,227.71
  4. Step 4: Simplify right side
    1,601.39x = 2,714,465.66
  5. Step 5: Solve for x
    x = 2,714,465.66/1,601.39
  6. Step 6: Final answer
    x = 1,695.07

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1.5x scale

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.