Home / 6,474.12-9,711.54-2,091.60

Finding the Fourth Proportional to 6,474.12, 9,711.54 and 2,091.60

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Solution

The fourth proportional to 6,474.12, 9,711.54 and 2,091.60 is: 3,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.12 : 9,711.54 = 2,091.60 : x
  2. Step 2: Convert to fraction form
    6,474.12/9,711.54 = 2,091.60/x
  3. Step 3: Cross multiply
    6,474.12x = 9,711.54 × 2,091.60
  4. Step 4: Simplify right side
    6,474.12x = 20,312,657.06
  5. Step 5: Solve for x
    x = 20,312,657.06/6,474.12
  6. Step 6: Final answer
    x = 3,137.52

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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.