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Finding the Fourth Proportional to 7,155.76, 10,733.64 and 2,225.71

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Solution

The fourth proportional to 7,155.76, 10,733.64 and 2,225.71 is: 3,338.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.76 : 10,733.64 = 2,225.71 : x
  2. Step 2: Convert to fraction form
    7,155.76/10,733.64 = 2,225.71/x
  3. Step 3: Cross multiply
    7,155.76x = 10,733.64 × 2,225.71
  4. Step 4: Simplify right side
    7,155.76x = 23,889,969.88
  5. Step 5: Solve for x
    x = 23,889,969.88/7,155.76
  6. Step 6: Final answer
    x = 3,338.57

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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.