Home / 3,270.40-4,896.96-1,728.16

Finding the Fourth Proportional to 3,270.40, 4,896.96 and 1,728.16

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Solution

The fourth proportional to 3,270.40, 4,896.96 and 1,728.16 is: 2,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.40 : 4,896.96 = 1,728.16 : x
  2. Step 2: Convert to fraction form
    3,270.40/4,896.96 = 1,728.16/x
  3. Step 3: Cross multiply
    3,270.40x = 4,896.96 × 1,728.16
  4. Step 4: Simplify right side
    3,270.40x = 8,462,730.39
  5. Step 5: Solve for x
    x = 8,462,730.39/3,270.40
  6. Step 6: Final answer
    x = 2,587.67

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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.