Home / 4,782.38-7,174.17-1,319.63

Finding the Fourth Proportional to 4,782.38, 7,174.17 and 1,319.63

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Solution

The fourth proportional to 4,782.38, 7,174.17 and 1,319.63 is: 1,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.38 : 7,174.17 = 1,319.63 : x
  2. Step 2: Convert to fraction form
    4,782.38/7,174.17 = 1,319.63/x
  3. Step 3: Cross multiply
    4,782.38x = 7,174.17 × 1,319.63
  4. Step 4: Simplify right side
    4,782.38x = 9,467,214.09
  5. Step 5: Solve for x
    x = 9,467,214.09/4,782.38
  6. Step 6: Final answer
    x = 1,979.61

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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.