Home / 5,790.93-7,991.52-3,138.36

Finding the Fourth Proportional to 5,790.93, 7,991.52 and 3,138.36

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Solution

The fourth proportional to 5,790.93, 7,991.52 and 3,138.36 is: 4,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.93 : 7,991.52 = 3,138.36 : x
  2. Step 2: Convert to fraction form
    5,790.93/7,991.52 = 3,138.36/x
  3. Step 3: Cross multiply
    5,790.93x = 7,991.52 × 3,138.36
  4. Step 4: Simplify right side
    5,790.93x = 25,080,266.71
  5. Step 5: Solve for x
    x = 25,080,266.71/5,790.93
  6. Step 6: Final answer
    x = 4,330.96

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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.