Home / 2,005.17-2,767.11-1,121.01

Finding the Fourth Proportional to 2,005.17, 2,767.11 and 1,121.01

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Solution

The fourth proportional to 2,005.17, 2,767.11 and 1,121.01 is: 1,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.17 : 2,767.11 = 1,121.01 : x
  2. Step 2: Convert to fraction form
    2,005.17/2,767.11 = 1,121.01/x
  3. Step 3: Cross multiply
    2,005.17x = 2,767.11 × 1,121.01
  4. Step 4: Simplify right side
    2,005.17x = 3,101,957.98
  5. Step 5: Solve for x
    x = 3,101,957.98/2,005.17
  6. Step 6: Final answer
    x = 1,546.98

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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.