Home / 2,005.18-2,767.13-1,120.98

Finding the Fourth Proportional to 2,005.18, 2,767.13 and 1,120.98

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Solution

The fourth proportional to 2,005.18, 2,767.13 and 1,120.98 is: 1,546.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.18 : 2,767.13 = 1,120.98 : x
  2. Step 2: Convert to fraction form
    2,005.18/2,767.13 = 1,120.98/x
  3. Step 3: Cross multiply
    2,005.18x = 2,767.13 × 1,120.98
  4. Step 4: Simplify right side
    2,005.18x = 3,101,897.39
  5. Step 5: Solve for x
    x = 3,101,897.39/2,005.18
  6. Step 6: Final answer
    x = 1,546.94

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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.