Home / 9,190.30-13,781.40-3,641.80

Finding the Fourth Proportional to 9,190.30, 13,781.40 and 3,641.80

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Solution

The fourth proportional to 9,190.30, 13,781.40 and 3,641.80 is: 5,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.30 : 13,781.40 = 3,641.80 : x
  2. Step 2: Convert to fraction form
    9,190.30/13,781.40 = 3,641.80/x
  3. Step 3: Cross multiply
    9,190.30x = 13,781.40 × 3,641.80
  4. Step 4: Simplify right side
    9,190.30x = 50,189,102.52
  5. Step 5: Solve for x
    x = 50,189,102.52/9,190.30
  6. Step 6: Final answer
    x = 5,461.10

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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.