Home / 3,779,439.80-5,215,402.20-2,147,620.68

Finding the Fourth Proportional to 3,779,439.80, 5,215,402.20 and 2,147,620.68

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Solution

The fourth proportional to 3,779,439.80, 5,215,402.20 and 2,147,620.68 is: 2,963,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779,439.80 : 5,215,402.20 = 2,147,620.68 : x
  2. Step 2: Convert to fraction form
    3,779,439.80/5,215,402.20 = 2,147,620.68/x
  3. Step 3: Cross multiply
    3,779,439.80x = 5,215,402.20 × 2,147,620.68
  4. Step 4: Simplify right side
    3,779,439.80x = 11,200,705,619,237.50
  5. Step 5: Solve for x
    x = 11,200,705,619,237.50/3,779,439.80
  6. Step 6: Final answer
    x = 2,963,588.84

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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.