Home / 2,155,160.40-3,233,129.40-1,087,515.60

Finding the Fourth Proportional to 2,155,160.40, 3,233,129.40 and 1,087,515.60

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Solution

The fourth proportional to 2,155,160.40, 3,233,129.40 and 1,087,515.60 is: 1,631,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,160.40 : 3,233,129.40 = 1,087,515.60 : x
  2. Step 2: Convert to fraction form
    2,155,160.40/3,233,129.40 = 1,087,515.60/x
  3. Step 3: Cross multiply
    2,155,160.40x = 3,233,129.40 × 1,087,515.60
  4. Step 4: Simplify right side
    2,155,160.40x = 3,516,078,659,318.64
  5. Step 5: Solve for x
    x = 3,516,078,659,318.64/2,155,160.40
  6. Step 6: Final answer
    x = 1,631,469.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.