Home / 5,319.44-7,350.93-3,990.83

Finding the Fourth Proportional to 5,319.44, 7,350.93 and 3,990.83

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Solution

The fourth proportional to 5,319.44, 7,350.93 and 3,990.83 is: 5,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.44 : 7,350.93 = 3,990.83 : x
  2. Step 2: Convert to fraction form
    5,319.44/7,350.93 = 3,990.83/x
  3. Step 3: Cross multiply
    5,319.44x = 7,350.93 × 3,990.83
  4. Step 4: Simplify right side
    5,319.44x = 29,336,275.22
  5. Step 5: Solve for x
    x = 29,336,275.22/5,319.44
  6. Step 6: Final answer
    x = 5,514.92

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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.