Home / 7,947.25-11,920.94-2,400.64

Finding the Fourth Proportional to 7,947.25, 11,920.94 and 2,400.64

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Solution

The fourth proportional to 7,947.25, 11,920.94 and 2,400.64 is: 3,600.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.25 : 11,920.94 = 2,400.64 : x
  2. Step 2: Convert to fraction form
    7,947.25/11,920.94 = 2,400.64/x
  3. Step 3: Cross multiply
    7,947.25x = 11,920.94 × 2,400.64
  4. Step 4: Simplify right side
    7,947.25x = 28,617,885.40
  5. Step 5: Solve for x
    x = 28,617,885.40/7,947.25
  6. Step 6: Final answer
    x = 3,600.98

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1.5x scale

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.