Home / 3,673.08-5,509.62-1,331.78

Finding the Fourth Proportional to 3,673.08, 5,509.62 and 1,331.78

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Solution

The fourth proportional to 3,673.08, 5,509.62 and 1,331.78 is: 1,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.08 : 5,509.62 = 1,331.78 : x
  2. Step 2: Convert to fraction form
    3,673.08/5,509.62 = 1,331.78/x
  3. Step 3: Cross multiply
    3,673.08x = 5,509.62 × 1,331.78
  4. Step 4: Simplify right side
    3,673.08x = 7,337,574.18
  5. Step 5: Solve for x
    x = 7,337,574.18/3,673.08
  6. Step 6: Final answer
    x = 1,997.66

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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.