Home / 5,812.22-8,012.90-3,995.18

Finding the Fourth Proportional to 5,812.22, 8,012.90 and 3,995.18

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Solution

The fourth proportional to 5,812.22, 8,012.90 and 3,995.18 is: 5,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.22 : 8,012.90 = 3,995.18 : x
  2. Step 2: Convert to fraction form
    5,812.22/8,012.90 = 3,995.18/x
  3. Step 3: Cross multiply
    5,812.22x = 8,012.90 × 3,995.18
  4. Step 4: Simplify right side
    5,812.22x = 32,012,977.82
  5. Step 5: Solve for x
    x = 32,012,977.82/5,812.22
  6. Step 6: Final answer
    x = 5,507.87

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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.