Home / 3,618.08-5,427.48-1,670.48

Finding the Fourth Proportional to 3,618.08, 5,427.48 and 1,670.48

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Solution

The fourth proportional to 3,618.08, 5,427.48 and 1,670.48 is: 2,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.08 : 5,427.48 = 1,670.48 : x
  2. Step 2: Convert to fraction form
    3,618.08/5,427.48 = 1,670.48/x
  3. Step 3: Cross multiply
    3,618.08x = 5,427.48 × 1,670.48
  4. Step 4: Simplify right side
    3,618.08x = 9,066,496.79
  5. Step 5: Solve for x
    x = 9,066,496.79/3,618.08
  6. Step 6: Final answer
    x = 2,505.89

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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.