Home / 1,809.66-2,497.05-1,101.72

Finding the Fourth Proportional to 1,809.66, 2,497.05 and 1,101.72

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Solution

The fourth proportional to 1,809.66, 2,497.05 and 1,101.72 is: 1,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.66 : 2,497.05 = 1,101.72 : x
  2. Step 2: Convert to fraction form
    1,809.66/2,497.05 = 1,101.72/x
  3. Step 3: Cross multiply
    1,809.66x = 2,497.05 × 1,101.72
  4. Step 4: Simplify right side
    1,809.66x = 2,751,049.93
  5. Step 5: Solve for x
    x = 2,751,049.93/1,809.66
  6. Step 6: Final answer
    x = 1,520.20

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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.