Home / 3,686,435.56-5,087,388.90-2,158,399.72

Finding the Fourth Proportional to 3,686,435.56, 5,087,388.90 and 2,158,399.72

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Solution

The fourth proportional to 3,686,435.56, 5,087,388.90 and 2,158,399.72 is: 2,978,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686,435.56 : 5,087,388.90 = 2,158,399.72 : x
  2. Step 2: Convert to fraction form
    3,686,435.56/5,087,388.90 = 2,158,399.72/x
  3. Step 3: Cross multiply
    3,686,435.56x = 5,087,388.90 × 2,158,399.72
  4. Step 4: Simplify right side
    3,686,435.56x = 10,980,618,777,291.11
  5. Step 5: Solve for x
    x = 10,980,618,777,291.11/3,686,435.56
  6. Step 6: Final answer
    x = 2,978,654.75

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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.