Home / 7,928.39-10,943.43-4,784.78

Finding the Fourth Proportional to 7,928.39, 10,943.43 and 4,784.78

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Solution

The fourth proportional to 7,928.39, 10,943.43 and 4,784.78 is: 6,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.39 : 10,943.43 = 4,784.78 : x
  2. Step 2: Convert to fraction form
    7,928.39/10,943.43 = 4,784.78/x
  3. Step 3: Cross multiply
    7,928.39x = 10,943.43 × 4,784.78
  4. Step 4: Simplify right side
    7,928.39x = 52,361,905.00
  5. Step 5: Solve for x
    x = 52,361,905.00/7,928.39
  6. Step 6: Final answer
    x = 6,604.36

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1.5x scale

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.