Home / 3,580.12-5,369.77-1,115.02

Finding the Fourth Proportional to 3,580.12, 5,369.77 and 1,115.02

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Solution

The fourth proportional to 3,580.12, 5,369.77 and 1,115.02 is: 1,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.12 : 5,369.77 = 1,115.02 : x
  2. Step 2: Convert to fraction form
    3,580.12/5,369.77 = 1,115.02/x
  3. Step 3: Cross multiply
    3,580.12x = 5,369.77 × 1,115.02
  4. Step 4: Simplify right side
    3,580.12x = 5,987,400.95
  5. Step 5: Solve for x
    x = 5,987,400.95/3,580.12
  6. Step 6: Final answer
    x = 1,672.40

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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.