Home / 7,158.46-10,739.92-3,213

Finding the Fourth Proportional to 7,158.46, 10,739.92 and 3,213

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Solution

The fourth proportional to 7,158.46, 10,739.92 and 3,213 is: 4,820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.46 : 10,739.92 = 3,213 : x
  2. Step 2: Convert to fraction form
    7,158.46/10,739.92 = 3,213/x
  3. Step 3: Cross multiply
    7,158.46x = 10,739.92 × 3,213
  4. Step 4: Simplify right side
    7,158.46x = 34,507,362.96
  5. Step 5: Solve for x
    x = 34,507,362.96/7,158.46
  6. Step 6: Final answer
    x = 4,820.50

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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.