Home / 2,469.20-3,407.72-1,407.16

Finding the Fourth Proportional to 2,469.20, 3,407.72 and 1,407.16

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Solution

The fourth proportional to 2,469.20, 3,407.72 and 1,407.16 is: 1,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469.20 : 3,407.72 = 1,407.16 : x
  2. Step 2: Convert to fraction form
    2,469.20/3,407.72 = 1,407.16/x
  3. Step 3: Cross multiply
    2,469.20x = 3,407.72 × 1,407.16
  4. Step 4: Simplify right side
    2,469.20x = 4,795,207.28
  5. Step 5: Solve for x
    x = 4,795,207.28/2,469.20
  6. Step 6: Final answer
    x = 1,942.01

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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.