Home / 3,665.79-5,059.44-2,780.10

Finding the Fourth Proportional to 3,665.79, 5,059.44 and 2,780.10

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Solution

The fourth proportional to 3,665.79, 5,059.44 and 2,780.10 is: 3,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.79 : 5,059.44 = 2,780.10 : x
  2. Step 2: Convert to fraction form
    3,665.79/5,059.44 = 2,780.10/x
  3. Step 3: Cross multiply
    3,665.79x = 5,059.44 × 2,780.10
  4. Step 4: Simplify right side
    3,665.79x = 14,065,749.14
  5. Step 5: Solve for x
    x = 14,065,749.14/3,665.79
  6. Step 6: Final answer
    x = 3,837.03

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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.