Home / 3,670.29-5,509.08-2,857.45

Finding the Fourth Proportional to 3,670.29, 5,509.08 and 2,857.45

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Solution

The fourth proportional to 3,670.29, 5,509.08 and 2,857.45 is: 4,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.29 : 5,509.08 = 2,857.45 : x
  2. Step 2: Convert to fraction form
    3,670.29/5,509.08 = 2,857.45/x
  3. Step 3: Cross multiply
    3,670.29x = 5,509.08 × 2,857.45
  4. Step 4: Simplify right side
    3,670.29x = 15,741,920.64
  5. Step 5: Solve for x
    x = 15,741,920.64/3,670.29
  6. Step 6: Final answer
    x = 4,289.02

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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.