Home / 3,039.48-4,561.38-1,091.70

Finding the Fourth Proportional to 3,039.48, 4,561.38 and 1,091.70

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Solution

The fourth proportional to 3,039.48, 4,561.38 and 1,091.70 is: 1,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.48 : 4,561.38 = 1,091.70 : x
  2. Step 2: Convert to fraction form
    3,039.48/4,561.38 = 1,091.70/x
  3. Step 3: Cross multiply
    3,039.48x = 4,561.38 × 1,091.70
  4. Step 4: Simplify right side
    3,039.48x = 4,979,658.55
  5. Step 5: Solve for x
    x = 4,979,658.55/3,039.48
  6. Step 6: Final answer
    x = 1,638.33

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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.