Home / 2,129,205.20-2,930,845.08-1,856,792.48

Finding the Fourth Proportional to 2,129,205.20, 2,930,845.08 and 1,856,792.48

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Solution

The fourth proportional to 2,129,205.20, 2,930,845.08 and 1,856,792.48 is: 2,555,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,205.20 : 2,930,845.08 = 1,856,792.48 : x
  2. Step 2: Convert to fraction form
    2,129,205.20/2,930,845.08 = 1,856,792.48/x
  3. Step 3: Cross multiply
    2,129,205.20x = 2,930,845.08 × 1,856,792.48
  4. Step 4: Simplify right side
    2,129,205.20x = 5,441,971,104,589.00
  5. Step 5: Solve for x
    x = 5,441,971,104,589.00/2,129,205.20
  6. Step 6: Final answer
    x = 2,555,869.72

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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.