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Finding the Fourth Proportional to 5,005.76, 7,520.94 and 3,769.40

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Solution

The fourth proportional to 5,005.76, 7,520.94 and 3,769.40 is: 5,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.76 : 7,520.94 = 3,769.40 : x
  2. Step 2: Convert to fraction form
    5,005.76/7,520.94 = 3,769.40/x
  3. Step 3: Cross multiply
    5,005.76x = 7,520.94 × 3,769.40
  4. Step 4: Simplify right side
    5,005.76x = 28,349,450.04
  5. Step 5: Solve for x
    x = 28,349,450.04/5,005.76
  6. Step 6: Final answer
    x = 5,663.37

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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.