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Finding the Fourth Proportional to 7,120.03, 10,679.23 and 1,925.50

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Solution

The fourth proportional to 7,120.03, 10,679.23 and 1,925.50 is: 2,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.03 : 10,679.23 = 1,925.50 : x
  2. Step 2: Convert to fraction form
    7,120.03/10,679.23 = 1,925.50/x
  3. Step 3: Cross multiply
    7,120.03x = 10,679.23 × 1,925.50
  4. Step 4: Simplify right side
    7,120.03x = 20,562,857.37
  5. Step 5: Solve for x
    x = 20,562,857.37/7,120.03
  6. Step 6: Final answer
    x = 2,888.03

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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.