Home / 3,654.96-5,482.86-1,189.20

Finding the Fourth Proportional to 3,654.96, 5,482.86 and 1,189.20

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Solution

The fourth proportional to 3,654.96, 5,482.86 and 1,189.20 is: 1,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.96 : 5,482.86 = 1,189.20 : x
  2. Step 2: Convert to fraction form
    3,654.96/5,482.86 = 1,189.20/x
  3. Step 3: Cross multiply
    3,654.96x = 5,482.86 × 1,189.20
  4. Step 4: Simplify right side
    3,654.96x = 6,520,217.11
  5. Step 5: Solve for x
    x = 6,520,217.11/3,654.96
  6. Step 6: Final answer
    x = 1,783.94

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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.