Home / 4,160.96-6,240.36-1,238.48

Finding the Fourth Proportional to 4,160.96, 6,240.36 and 1,238.48

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Solution

The fourth proportional to 4,160.96, 6,240.36 and 1,238.48 is: 1,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.96 : 6,240.36 = 1,238.48 : x
  2. Step 2: Convert to fraction form
    4,160.96/6,240.36 = 1,238.48/x
  3. Step 3: Cross multiply
    4,160.96x = 6,240.36 × 1,238.48
  4. Step 4: Simplify right side
    4,160.96x = 7,728,561.05
  5. Step 5: Solve for x
    x = 7,728,561.05/4,160.96
  6. Step 6: Final answer
    x = 1,857.40

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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.