Home / 7,334.40-11,001.60-2,139.60

Finding the Fourth Proportional to 7,334.40, 11,001.60 and 2,139.60

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Solution

The fourth proportional to 7,334.40, 11,001.60 and 2,139.60 is: 3,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.40 : 11,001.60 = 2,139.60 : x
  2. Step 2: Convert to fraction form
    7,334.40/11,001.60 = 2,139.60/x
  3. Step 3: Cross multiply
    7,334.40x = 11,001.60 × 2,139.60
  4. Step 4: Simplify right side
    7,334.40x = 23,539,023.36
  5. Step 5: Solve for x
    x = 23,539,023.36/7,334.40
  6. Step 6: Final answer
    x = 3,209.40

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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.