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Finding the Fourth Proportional to 2,673.70, 4,009.08 and 1,091.02

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Solution

The fourth proportional to 2,673.70, 4,009.08 and 1,091.02 is: 1,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.70 : 4,009.08 = 1,091.02 : x
  2. Step 2: Convert to fraction form
    2,673.70/4,009.08 = 1,091.02/x
  3. Step 3: Cross multiply
    2,673.70x = 4,009.08 × 1,091.02
  4. Step 4: Simplify right side
    2,673.70x = 4,373,986.46
  5. Step 5: Solve for x
    x = 4,373,986.46/2,673.70
  6. Step 6: Final answer
    x = 1,635.93

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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.