Home / 7,928.86-10,940.25-4,785.22

Finding the Fourth Proportional to 7,928.86, 10,940.25 and 4,785.22

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Solution

The fourth proportional to 7,928.86, 10,940.25 and 4,785.22 is: 6,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.86 : 10,940.25 = 4,785.22 : x
  2. Step 2: Convert to fraction form
    7,928.86/10,940.25 = 4,785.22/x
  3. Step 3: Cross multiply
    7,928.86x = 10,940.25 × 4,785.22
  4. Step 4: Simplify right side
    7,928.86x = 52,351,503.11
  5. Step 5: Solve for x
    x = 52,351,503.11/7,928.86
  6. Step 6: Final answer
    x = 6,602.65

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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.