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Finding the Fourth Proportional to 7,379.58, 10,192.05 and 5,721.03

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Solution

The fourth proportional to 7,379.58, 10,192.05 and 5,721.03 is: 7,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.58 : 10,192.05 = 5,721.03 : x
  2. Step 2: Convert to fraction form
    7,379.58/10,192.05 = 5,721.03/x
  3. Step 3: Cross multiply
    7,379.58x = 10,192.05 × 5,721.03
  4. Step 4: Simplify right side
    7,379.58x = 58,309,023.81
  5. Step 5: Solve for x
    x = 58,309,023.81/7,379.58
  6. Step 6: Final answer
    x = 7,901.40

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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.