Home / 5,409.06-8,127.26-5,190.36

Finding the Fourth Proportional to 5,409.06, 8,127.26 and 5,190.36

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Solution

The fourth proportional to 5,409.06, 8,127.26 and 5,190.36 is: 7,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.06 : 8,127.26 = 5,190.36 : x
  2. Step 2: Convert to fraction form
    5,409.06/8,127.26 = 5,190.36/x
  3. Step 3: Cross multiply
    5,409.06x = 8,127.26 × 5,190.36
  4. Step 4: Simplify right side
    5,409.06x = 42,183,405.21
  5. Step 5: Solve for x
    x = 42,183,405.21/5,409.06
  6. Step 6: Final answer
    x = 7,798.66

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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.