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Finding the Fourth Proportional to 7,503.78, 11,255.67 and 1,957.11

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Solution

The fourth proportional to 7,503.78, 11,255.67 and 1,957.11 is: 2,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.78 : 11,255.67 = 1,957.11 : x
  2. Step 2: Convert to fraction form
    7,503.78/11,255.67 = 1,957.11/x
  3. Step 3: Cross multiply
    7,503.78x = 11,255.67 × 1,957.11
  4. Step 4: Simplify right side
    7,503.78x = 22,028,584.31
  5. Step 5: Solve for x
    x = 22,028,584.31/7,503.78
  6. Step 6: Final answer
    x = 2,935.67

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Similar ratio
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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.