Home / 2,666.21-3,999.28-1,204.34

Finding the Fourth Proportional to 2,666.21, 3,999.28 and 1,204.34

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Solution

The fourth proportional to 2,666.21, 3,999.28 and 1,204.34 is: 1,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.21 : 3,999.28 = 1,204.34 : x
  2. Step 2: Convert to fraction form
    2,666.21/3,999.28 = 1,204.34/x
  3. Step 3: Cross multiply
    2,666.21x = 3,999.28 × 1,204.34
  4. Step 4: Simplify right side
    2,666.21x = 4,816,486.85
  5. Step 5: Solve for x
    x = 4,816,486.85/2,666.21
  6. Step 6: Final answer
    x = 1,806.49

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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.