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Finding the Fourth Proportional to 7,393.77, 11,088.97 and 2,128.77

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Solution

The fourth proportional to 7,393.77, 11,088.97 and 2,128.77 is: 3,192.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393.77 : 11,088.97 = 2,128.77 : x
  2. Step 2: Convert to fraction form
    7,393.77/11,088.97 = 2,128.77/x
  3. Step 3: Cross multiply
    7,393.77x = 11,088.97 × 2,128.77
  4. Step 4: Simplify right side
    7,393.77x = 23,605,866.67
  5. Step 5: Solve for x
    x = 23,605,866.67/7,393.77
  6. Step 6: Final answer
    x = 3,192.67

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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.