Home / 7,174.08-10,759.68-1,980.24

Finding the Fourth Proportional to 7,174.08, 10,759.68 and 1,980.24

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Solution

The fourth proportional to 7,174.08, 10,759.68 and 1,980.24 is: 2,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.08 : 10,759.68 = 1,980.24 : x
  2. Step 2: Convert to fraction form
    7,174.08/10,759.68 = 1,980.24/x
  3. Step 3: Cross multiply
    7,174.08x = 10,759.68 × 1,980.24
  4. Step 4: Simplify right side
    7,174.08x = 21,306,748.72
  5. Step 5: Solve for x
    x = 21,306,748.72/7,174.08
  6. Step 6: Final answer
    x = 2,969.96

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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.