Home / 3,665.88-5,059.44-2,780.19

Finding the Fourth Proportional to 3,665.88, 5,059.44 and 2,780.19

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Solution

The fourth proportional to 3,665.88, 5,059.44 and 2,780.19 is: 3,837.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.88 : 5,059.44 = 2,780.19 : x
  2. Step 2: Convert to fraction form
    3,665.88/5,059.44 = 2,780.19/x
  3. Step 3: Cross multiply
    3,665.88x = 5,059.44 × 2,780.19
  4. Step 4: Simplify right side
    3,665.88x = 14,066,204.49
  5. Step 5: Solve for x
    x = 14,066,204.49/3,665.88
  6. Step 6: Final answer
    x = 3,837.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.