Home / 7,783.09-10,740.61-4,425.90

Finding the Fourth Proportional to 7,783.09, 10,740.61 and 4,425.90

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Solution

The fourth proportional to 7,783.09, 10,740.61 and 4,425.90 is: 6,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.09 : 10,740.61 = 4,425.90 : x
  2. Step 2: Convert to fraction form
    7,783.09/10,740.61 = 4,425.90/x
  3. Step 3: Cross multiply
    7,783.09x = 10,740.61 × 4,425.90
  4. Step 4: Simplify right side
    7,783.09x = 47,536,865.80
  5. Step 5: Solve for x
    x = 47,536,865.80/7,783.09
  6. Step 6: Final answer
    x = 6,107.71

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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.