Home / 3,783.20-5,675.09-1,186.13

Finding the Fourth Proportional to 3,783.20, 5,675.09 and 1,186.13

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Solution

The fourth proportional to 3,783.20, 5,675.09 and 1,186.13 is: 1,779.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.20 : 5,675.09 = 1,186.13 : x
  2. Step 2: Convert to fraction form
    3,783.20/5,675.09 = 1,186.13/x
  3. Step 3: Cross multiply
    3,783.20x = 5,675.09 × 1,186.13
  4. Step 4: Simplify right side
    3,783.20x = 6,731,360.20
  5. Step 5: Solve for x
    x = 6,731,360.20/3,783.20
  6. Step 6: Final answer
    x = 1,779.28

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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.