Home / 2,480.01-3,420.48-1,485.09

Finding the Fourth Proportional to 2,480.01, 3,420.48 and 1,485.09

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Solution

The fourth proportional to 2,480.01, 3,420.48 and 1,485.09 is: 2,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.01 : 3,420.48 = 1,485.09 : x
  2. Step 2: Convert to fraction form
    2,480.01/3,420.48 = 1,485.09/x
  3. Step 3: Cross multiply
    2,480.01x = 3,420.48 × 1,485.09
  4. Step 4: Simplify right side
    2,480.01x = 5,079,720.64
  5. Step 5: Solve for x
    x = 5,079,720.64/2,480.01
  6. Step 6: Final answer
    x = 2,048.27

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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.