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Finding the Fourth Proportional to 3,494.88, 5,243.04 and 1,187.04

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Solution

The fourth proportional to 3,494.88, 5,243.04 and 1,187.04 is: 1,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.88 : 5,243.04 = 1,187.04 : x
  2. Step 2: Convert to fraction form
    3,494.88/5,243.04 = 1,187.04/x
  3. Step 3: Cross multiply
    3,494.88x = 5,243.04 × 1,187.04
  4. Step 4: Simplify right side
    3,494.88x = 6,223,698.20
  5. Step 5: Solve for x
    x = 6,223,698.20/3,494.88
  6. Step 6: Final answer
    x = 1,780.80

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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.